# React Native app can\`t subscribe to stream

**URL:** <https://openvidu.discourse.group/t/react-native-app-can-t-subscribe-to-stream/593>\
**Category:** Issues developing apps\
**Tags:** v2\
**Created:** [April 28, 2020, 9:50am UTC](https://openvidu.discourse.group/t/react-native-app-can-t-subscribe-to-stream/593 "2020-04-28T09:50:51Z")\
**Posts on this page:** 8\
**Page:** 1

<div class="post-metadata">

**Author:** ![isuhar](https://yyz2.discourse-cdn.com/free1/user_avatar/openvidu.discourse.group/isuhar/32/311_2.png) [@isuhar](https://openvidu.discourse.group/u/isuhar)\
**Post date:** [April 28, 2020, 9:50am UTC](https://openvidu.discourse.group/t/react-native-app-can-t-subscribe-to-stream/593/1 "2020-04-28T09:50:51Z")

</div>

I implement the react native application as in the example, when the “streamCreated” event arrives, I call session.subscribe (event.stream) and various errors periodically occur in it: Request has timed out in Request “onIceCandidate”, ERROR: Can`t add existing ICE candidates to null (Code 403 in Request)

Some error on servers versions 2.12.0 and 2.13.0, RN library version 2.11.0

 ![image](https://global.discourse-cdn.com/free1/uploads/openvidu/original/1X/fd13897b6569f218bced9b44a1f43588324901a2.jpeg)

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<div class="post-metadata">

**Author:** ![micael.gallego](https://yyz2.discourse-cdn.com/free1/user_avatar/openvidu.discourse.group/micael.gallego/32/2_2.png) [@micael.gallego](https://openvidu.discourse.group/u/micael.gallego)\
**Post date:** [April 28, 2020, 10:19am UTC](https://openvidu.discourse.group/t/react-native-app-can-t-subscribe-to-stream/593/2 "2020-04-28T10:19:35Z")

</div>

Please can you share with us openvidu server logs? It seems a problem with the server.

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<div class="post-metadata">

**Author:** ![isuhar](https://yyz2.discourse-cdn.com/free1/user_avatar/openvidu.discourse.group/isuhar/32/311_2.png) [@isuhar](https://openvidu.discourse.group/u/isuhar)\
**Post date:** [April 28, 2020, 10:36am UTC](https://openvidu.discourse.group/t/react-native-app-can-t-subscribe-to-stream/593/3 "2020-04-28T10:36:58Z")

</div>

I can`t attach file =( Log is to large…

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<div class="post-metadata">

**Author:** ![isuhar](https://yyz2.discourse-cdn.com/free1/user_avatar/openvidu.discourse.group/isuhar/32/311_2.png) [@isuhar](https://openvidu.discourse.group/u/isuhar)\
**Post date:** [April 28, 2020, 10:37am UTC](https://openvidu.discourse.group/t/react-native-app-can-t-subscribe-to-stream/593/4 "2020-04-28T10:37:35Z")

</div>

[INFO] 2020-04-28 12:27:23,386 [nm9afmc-e124-t0] io.openvidu.server.rpc.RpcHandler - Participant con\_DcO6FrvuUw is calling method ‘onIceCandidate’ in session 516101-Topic-2  
[INFO] 2020-04-28 12:27:23,387 [nm9afmc-e124-t0] io.openvidu.server.rpc.RpcHandler - Participant con\_DcO6FrvuUw is calling method ‘onIceCandidate’ in session 516101-Topic-2  
[INFO] 2020-04-28 12:27:23,395 [msg9uv4-e120-t0] io.openvidu.server.rpc.RpcHandler - Participant con\_KwjnZz5ob2 is calling method ‘subscribe’ in session 516101-Topic-2  
[INFO] 2020-04-28 12:27:23,396 [msg9uv4-e120-t0] io.openvidu.server.kurento.core.KurentoParticipant - PARTICIPANT con\_KwjnZz5ob2: Request to receive media from con\_DcO6FrvuUw in room 516101-Topic-2  
[INFO] 2020-04-28 12:27:23,397 [ucfvf2h-e122-t0] io.openvidu.server.rpc.RpcHandler - Participant con\_E7YejzU5NZ is calling method ‘subscribe’ in session 516101-Topic-2  
[INFO] 2020-04-28 12:27:23,397 [ucfvf2h-e122-t0] io.openvidu.server.kurento.core.KurentoParticipant - PARTICIPANT con\_E7YejzU5NZ: Request to receive media from con\_DcO6FrvuUw in room 516101-Topic-2  
[INFO] 2020-04-28 12:27:23,437 [entExec-e2-t568] io.openvidu.server.kurento.core.KurentoParticipantEndpointConfig - KMS event [IceComponentStateChange]: -\> endpoint: str\_CAM\_Pqil\_con\_DcO6FrvuUw (publisher) | state: CONNECTING | componentId: 1 | streamId: 1 | timestamp: 1588066043402  
[INFO] 2020-04-28 12:27:23,439 [entExec-e2-t570] io.openvidu.server.kurento.core.KurentoParticipantEndpointConfig - KMS event [IceGatheringDone] -\> endpoint: str\_CAM\_Pqil\_con\_DcO6FrvuUw (publisher) | timestamp: 1588066043398  
[INFO] 2020-04-28 12:27:23,486 [nm9afmc-e124-t0] io.openvidu.server.rpc.RpcHandler - Participant con\_DcO6FrvuUw is calling method ‘onIceCandidate’ in session 516101-Topic-2  
[INFO] 2020-04-28 12:27:23,516 [nm9afmc-e124-t0] io.openvidu.server.rpc.RpcHandler - Participant con\_DcO6FrvuUw is calling method ‘onIceCandidate’ in session 516101-Topic-2  
[INFO] 2020-04-28 12:27:23,521 [nm9afmc-e124-t0] io.openvidu.server.rpc.RpcHandler - Participant con\_DcO6FrvuUw is calling method ‘onIceCandidate’ in session 516101-Topic-2  
[INFO] 2020-04-28 12:27:23,533 [msg9uv4-e120-t0] io.openvidu.server.kurento.core.KurentoParticipant - PARTICIPANT con\_KwjnZz5ob2: Is now receiving video from con\_DcO6FrvuUw in room 516101-Topic-2  
[INFO] 2020-04-28 12:27:23,535 [msg9uv4-e120-t0] io.openvidu.server.rpc.RpcHandler - Participant con\_KwjnZz5ob2 is calling method ‘onIceCandidate’ in session 516101-Topic-2  
[INFO] 2020-04-28 12:27:23,538 [msg9uv4-e120-t0] io.openvidu.server.rpc.RpcHandler - Participant con\_KwjnZz5ob2 is calling method ‘onIceCandidate’ in session 516101-Topic-2  
[INFO] 2020-04-28 12:27:23,539 [msg9uv4-e120-t0] io.openvidu.server.rpc.RpcHandler - Participant con\_KwjnZz5ob2 is calling method ‘onIceCandidate’ in session 516101-Topic-2  
[INFO] 2020-04-28 12:27:23,539 [msg9uv4-e120-t0] io.openvidu.server.rpc.RpcHandler - Participant con\_KwjnZz5ob2 is calling method ‘onIceCandidate’ in session 516101-Topic-2  
[INFO] 2020-04-28 12:27:23,540 [msg9uv4-e120-t0] io.openvidu.server.rpc.RpcHandler - Participant con\_KwjnZz5ob2 is calling method ‘onIceCandidate’ in session 516101-Topic-2  
[INFO] 2020-04-28 12:27:23,540 [msg9uv4-e120-t0] io.openvidu.server.rpc.RpcHandler - Participant con\_KwjnZz5ob2 is calling method ‘onIceCandidate’ in session 516101-Topic-2  
[INFO] 2020-04-28 12:27:23,543 [msg9uv4-e120-t0] io.openvidu.server.rpc.RpcHandler - Participant con\_KwjnZz5ob2 is calling method ‘onIceCandidate’ in session 516101-Topic-2  
[INFO] 2020-04-28 12:27:23,547 [msg9uv4-e120-t0] io.openvidu.server.rpc.RpcHandler - Participant con\_KwjnZz5ob2 is calling method ‘onIceCandidate’ in session 516101-Topic-2  
[INFO] 2020-04-28 12:27:23,549 [msg9uv4-e120-t0] io.openvidu.server.rpc.RpcHandler - Participant con\_KwjnZz5ob2 is calling method ‘onIceCandidate’ in session 516101-Topic-2  
[INFO] 2020-04-28 12:27:23,550 [msg9uv4-e120-t0] io.openvidu.server.rpc.RpcHandler - Participant con\_KwjnZz5ob2 is calling method ‘onIceCandidate’ in session 516101-Topic-2  
[INFO] 2020-04-28 12:27:23,551 [msg9uv4-e120-t0] io.openvidu.server.rpc.RpcHandler - Participant con\_KwjnZz5ob2 is calling method ‘onIceCandidate’ in session 516101-Topic-2  
[INFO] 2020-04-28 12:27:23,552 [msg9uv4-e120-t0] io.openvidu.server.rpc.RpcHandler - Participant con\_KwjnZz5ob2 is calling method ‘onIceCandidate’ in session 516101-Topic-2  
[INFO] 2020-04-28 12:27:23,555 [msg9uv4-e120-t0] io.openvidu.server.rpc.RpcHandler - Participant con\_KwjnZz5ob2 is calling method ‘onIceCandidate’ in session 516101-Topic-2  
[INFO] 2020-04-28 12:27:23,557 [msg9uv4-e120-t0] io.openvidu.server.rpc.RpcHandler - Participant con\_KwjnZz5ob2 is calling method ‘onIceCandidate’ in session 516101-Topic-2  
[INFO] 2020-04-28 12:27:23,558 [msg9uv4-e120-t0] io.openvidu.server.rpc.RpcHandler - Participant con\_KwjnZz5ob2 is calling method ‘onIceCandidate’ in session 516101-Topic-2  
[INFO] 2020-04-28 12:27:23,560 [msg9uv4-e120-t0] io.openvidu.server.rpc.RpcHandler - Participant con\_KwjnZz5ob2 is calling method ‘onIceCandidate’ in session 516101-Topic-2  
[INFO] 2020-04-28 12:27:23,562 [msg9uv4-e120-t0] io.openvidu.server.rpc.RpcHandler - Participant con\_KwjnZz5ob2 is calling method ‘onIceCandidate’ in session 516101-Topic-2  
[INFO] 2020-04-28 12:27:23,565 [msg9uv4-e120-t0] io.openvidu.server.rpc.RpcHandler - Participant con\_KwjnZz5ob2 is calling method ‘onIceCandidate’ in session 516101-Topic-2  
[INFO] 2020-04-28 12:27:23,619 [entExec-e2-t575] io.openvidu.server.kurento.core.KurentoParticipantEndpointConfig - KMS event [IceGatheringDone] -\> endpoint: con\_KwjnZz5ob2\_str\_CAM\_Pqil\_con\_DcO6FrvuUw (subscriber) | timestamp: 1588066043567  
[INFO] 2020-04-28 12:27:23,626 [entExec-e2-t577] io.openvidu.server.kurento.core.KurentoParticipantEndpointConfig - KMS event [IceComponentStateChange]: -\> endpoint: con\_KwjnZz5ob2\_str\_CAM\_Pqil\_con\_DcO6FrvuUw (subscriber) | state: CONNECTING | componentId: 1 | streamId: 1 | timestamp: 1588066043577  
[INFO] 2020-04-28 12:27:23,696 [ucfvf2h-e122-t0] io.openvidu.server.kurento.core.KurentoParticipant - PARTICIPANT con\_E7YejzU5NZ: Is now receiving video from con\_DcO6FrvuUw in room 516101-Topic-2  
[INFO] 2020-04-28 12:27:23,697 [ucfvf2h-e122-t0] io.openvidu.server.rpc.RpcHandler - Participant con\_E7YejzU5NZ is calling method ‘onIceCandidate’ in session 516101-Topic-2  
[INFO] 2020-04-28 12:27:23,697 [ucfvf2h-e122-t0] io.openvidu.server.rpc.RpcHandler - Participant con\_E7YejzU5NZ is calling method ‘onIceCandidate’ in session 516101-Topic-2  
[INFO] 2020-04-28 12:27:23,698 [ucfvf2h-e122-t0] io.openvidu.server.rpc.RpcHandler - Participant con\_E7YejzU5NZ is calling method ‘onIceCandidate’ in session 516101-Topic-2  
[INFO] 2020-04-28 12:27:23,699 [ucfvf2h-e122-t0] io.openvidu.server.rpc.RpcHandler - Participant con\_E7YejzU5NZ is calling method ‘onIceCandidate’ in session 516101-Topic-2  
[INFO] 2020-04-28 12:27:23,699 [ucfvf2h-e122-t0] io.openvidu.server.rpc.RpcHandler - Participant con\_E7YejzU5NZ is calling method ‘onIceCandidate’ in session 516101-Topic-2  
[INFO] 2020-04-28 12:27:23,700 [ucfvf2h-e122-t0] io.openvidu.server.rpc.RpcHandler - Participant con\_E7YejzU5NZ is calling method ‘onIceCandidate’ in session 516101-Topic-2  
[INFO] 2020-04-28 12:27:23,700 [ucfvf2h-e122-t0] io.openvidu.server.rpc.RpcHandler - Participant con\_E7YejzU5NZ is calling method ‘onIceCandidate’ in session 516101-Topic-2  
[INFO] 2020-04-28 12:27:23,702 [ucfvf2h-e122-t0] io.openvidu.server.rpc.RpcHandler - Participant con\_E7YejzU5NZ is calling method ‘onIceCandidate’ in session 516101-Topic-2  
[INFO] 2020-04-28 12:27:23,707 [ucfvf2h-e122-t0] io.openvidu.server.rpc.RpcHandler - Participant con\_E7YejzU5NZ is calling method ‘onIceCandidate’ in session 516101-Topic-2  
[INFO] 2020-04-28 12:27:23,712 [ucfvf2h-e122-t0] io.openvidu.server.rpc.RpcHandler - Participant con\_E7YejzU5NZ is calling method ‘onIceCandidate’ in session 516101-Topic-2  
[INFO] 2020-04-28 12:27:23,714 [ucfvf2h-e122-t0] io.openvidu.server.rpc.RpcHandler - Participant con\_E7YejzU5NZ is calling method ‘onIceCandidate’ in session 516101-Topic-2  
[INFO] 2020-04-28 12:27:23,717 [ucfvf2h-e122-t0] io.openvidu.server.rpc.RpcHandler - Participant con\_E7YejzU5NZ is calling method ‘onIceCandidate’ in session 516101-Topic-2  
[INFO] 2020-04-28 12:27:23,720 [ucfvf2h-e122-t0] io.openvidu.server.rpc.RpcHandler - Participant con\_E7YejzU5NZ is calling method ‘onIceCandidate’ in session 516101-Topic-2  
[INFO] 2020-04-28 12:27:23,721 [ucfvf2h-e122-t0] io.openvidu.server.rpc.RpcHandler - Participant con\_E7YejzU5NZ is calling method ‘onIceCandidate’ in session 516101-Topic-2  
[INFO] 2020-04-28 12:27:23,726 [ucfvf2h-e122-t0] io.openvidu.server.rpc.RpcHandler - Participant con\_E7YejzU5NZ is calling method ‘onIceCandidate’ in session 516101-Topic-2  
[INFO] 2020-04-28 12:27:23,728 [ucfvf2h-e122-t0] io.openvidu.server.rpc.RpcHandler - Participant con\_E7YejzU5NZ is calling method ‘onIceCandidate’ in session 516101-Topic-2  
[INFO] 2020-04-28 12:27:23,731 [ucfvf2h-e122-t0] io.openvidu.server.rpc.RpcHandler - Participant con\_E7YejzU5NZ is calling method ‘onIceCandidate’ in session 516101-Topic-2  
[INFO] 2020-04-28 12:27:23,732 [ucfvf2h-e122-t0] io.openvidu.server.rpc.RpcHandler - Participant con\_E7YejzU5NZ is calling method ‘onIceCandidate’ in session 516101-Topic-2  
[INFO] 2020-04-28 12:27:23,789 [entExec-e2-t573] io.openvidu.server.kurento.core.KurentoParticipantEndpointConfig - KMS event [IceGatheringDone] -\> endpoint: con\_E7YejzU5NZ\_str\_CAM\_Pqil\_con\_DcO6FrvuUw (subscriber) | timestamp: 1588066043737  
[INFO] 2020-04-28 12:27:23,790 [entExec-e2-t572] io.openvidu.server.kurento.core.KurentoParticipantEndpointConfig - KMS event [IceComponentStateChange]: -\> endpoint: con\_E7YejzU5NZ\_str\_CAM\_Pqil\_con\_DcO6FrvuUw (subscriber) | state: CONNECTING | componentId: 1 | streamId: 1 | timestamp: 1588066043741  
[INFO] 2020-04-28 12:27:23,968 [entExec-e2-t582] io.openvidu.server.kurento.core.KurentoParticipantEndpointConfig - KMS event [NewCandidatePairSelected]: -\> endpoint: con\_KwjnZz5ob2\_str\_CAM\_Pqil\_con\_DcO6FrvuUw (subscriber) | local: candidate:7 1 UDP 2013266429 89.223.24.145 56031 typ host | remote: cand  
idate:3589960279 1 UDP 41754623 89.223.24.145 46117 typ relay raddr 95.73.38.152 rport 52205 | timestamp: 1588066043967  
[INFO] 2020-04-28 12:27:23,969 [entExec-e2-t581] io.openvidu.server.kurento.core.KurentoParticipantEndpointConfig - KMS event [IceComponentStateChange]: -\> endpoint: con\_KwjnZz5ob2\_str\_CAM\_Pqil\_con\_DcO6FrvuUw (subscriber) | state: CONNECTED | componentId: 1 | streamId: 1 | timestamp: 1588066043967  
[INFO] 2020-04-28 12:27:24,028 [entExec-e2-t581] io.openvidu.server.kurento.core.KurentoParticipantEndpointConfig - KMS event [NewCandidatePairSelected]: -\> endpoint: str\_CAM\_Pqil\_con\_DcO6FrvuUw (publisher) | local: candidate:7 1 UDP 2013266429 89.223.24.145 30967 typ host | remote: candidate:3127819443  
1 UDP 1686052607 95.73.38.152 64164 typ srflx raddr 192.168.1.38 rport 64164 | timestamp: 1588066044025  
[INFO] 2020-04-28 12:27:24,029 [entExec-e2-t582] io.openvidu.server.kurento.core.KurentoParticipantEndpointConfig - KMS event [IceComponentStateChange]: -\> endpoint: str\_CAM\_Pqil\_con\_DcO6FrvuUw (publisher) | state: CONNECTED | componentId: 1 | streamId: 1 | timestamp: 1588066044025  
[INFO] 2020-04-28 12:27:24,051 [entExec-e2-t582] io.openvidu.server.kurento.core.KurentoParticipantEndpointConfig - KMS event [NewCandidatePairSelected]: -\> endpoint: con\_E7YejzU5NZ\_str\_CAM\_Pqil\_con\_DcO6FrvuUw (subscriber) | local: candidate:7 1 UDP 2013266429 89.223.24.145 22197 typ host | remote: cand  
idate:3589960279 1 UDP 41754623 89.223.24.145 59539 typ relay raddr 95.73.38.152 rport 52211 | timestamp: 1588066044050  
[INFO] 2020-04-28 12:27:24,051 [entExec-e2-t581] io.openvidu.server.kurento.core.KurentoParticipantEndpointConfig - KMS event [IceComponentStateChange]: -\> endpoint: con\_E7YejzU5NZ\_str\_CAM\_Pqil\_con\_DcO6FrvuUw (subscriber) | state: CONNECTED | componentId: 1 | streamId: 1 | timestamp: 1588066044050  
[INFO] 2020-04-28 12:27:24,133 [entExec-e2-t581] io.openvidu.server.kurento.core.KurentoParticipantEndpointConfig - KMS event [NewCandidatePairSelected]: -\> endpoint: con\_KwjnZz5ob2\_str\_CAM\_Pqil\_con\_DcO6FrvuUw (subscriber) | local: candidate:7 1 UDP 2013266429 89.223.24.145 56031 typ host | remote: cand  
idate:2968651718 1 UDP 1685921535 95.73.38.152 52205 typ srflx raddr 192.168.1.49 rport 52205 | timestamp: 1588066044131  
[INFO] 2020-04-28 12:27:24,312 [entExec-e2-t581] io.openvidu.server.kurento.core.KurentoParticipantEndpointConfig - KMS event [NewCandidatePairSelected]: -\> endpoint: con\_E7YejzU5NZ\_str\_CAM\_Pqil\_con\_DcO6FrvuUw (subscriber) | local: candidate:7 1 UDP 2013266429 89.223.24.145 22197 typ host | remote: cand  
idate:2968651718 1 UDP 1685921535 95.73.38.152 52211 typ srflx raddr 192.168.1.49 rport 52211 | timestamp: 1588066044310  
[INFO] 2020-04-28 12:27:24,381 [entExec-e2-t581] io.openvidu.server.kurento.core.KurentoParticipantEndpointConfig - KMS event [ConnectionStateChanged]: -\> endpoint: str\_CAM\_Pqil\_con\_DcO6FrvuUw (publisher) | oldState: DISCONNECTED | newState: CONNECTED | timestamp: 1588066044379  
[INFO] 2020-04-28 12:27:24,533 [entExec-e2-t581] io.openvidu.server.kurento.core.KurentoParticipantEndpointConfig - KMS event [MediaFlowOutStateChange] -\> endpoint: str\_CAM\_Pqil\_con\_DcO6FrvuUw (publisher) | state: FLOWING | pad: default | mediaType: AUDIO | timestamp: 1588066044531  
[INFO] 2020-04-28 12:27:24,544 [entExec-e2-t581] io.openvidu.server.kurento.core.KurentoParticipantEndpointConfig - KMS event [ConnectionStateChanged]: -\> endpoint: con\_KwjnZz5ob2\_str\_CAM\_Pqil\_con\_DcO6FrvuUw (subscriber) | oldState: DISCONNECTED | newState: CONNECTED | timestamp: 1588066044542  
[INFO] 2020-04-28 12:27:24,545 [entExec-e2-t581] io.openvidu.server.kurento.core.KurentoParticipantEndpointConfig - KMS event [MediaTranscodingStateChange]: -\> endpoint: str\_CAM\_Pqil\_con\_DcO6FrvuUw (publisher) | state: NOT\_TRANSCODING | mediaType: AUDIO | binName: kmsagnosticbin2-1688 | timestamp: 15880  
66044534  
[INFO] 2020-04-28 12:27:24,566 [entExec-e2-t581] io.openvidu.server.kurento.core.KurentoParticipantEndpointConfig - KMS event [MediaFlowInStateChange] -\> endpoint: con\_KwjnZz5ob2\_str\_CAM\_Pqil\_con\_DcO6FrvuUw (subscriber) | state: FLOWING | pad: default | mediaType: AUDIO | timestamp: 1588066044565  
[INFO] 2020-04-28 12:27:24,700 [entExec-e2-t581] io.openvidu.server.kurento.core.KurentoParticipantEndpointConfig - KMS event [ConnectionStateChanged]: -\> endpoint: con\_E7YejzU5NZ\_str\_CAM\_Pqil\_con\_DcO6FrvuUw (subscriber) | oldState: DISCONNECTED | newState: CONNECTED | timestamp: 1588066044699  
[INFO] 2020-04-28 12:27:24,714 [entExec-e2-t581] io.openvidu.server.kurento.core.KurentoParticipantEndpointConfig - KMS event [MediaFlowInStateChange] -\> endpoint: con\_E7YejzU5NZ\_str\_CAM\_Pqil\_con\_DcO6FrvuUw (subscriber) | state: FLOWING | pad: default | mediaType: AUDIO | timestamp: 1588066044713  
[INFO] 2020-04-28 12:27:24,949 [entExec-e2-t581] io.openvidu.server.kurento.core.KurentoParticipantEndpointConfig - KMS event [MediaStateChangedEvent]: -\> endpoint: str\_CAM\_Pqil\_con\_DcO6FrvuUw (publisher) | oldState: DISCONNECTED | newState: CONNECTED | timestamp: 1588066044946  
[INFO] 2020-04-28 12:27:26,047 [entExec-e2-t581] io.openvidu.server.kurento.core.KurentoParticipantEndpointConfig - KMS event [MediaStateChangedEvent]: -\> endpoint: con\_KwjnZz5ob2\_str\_CAM\_Pqil\_con\_DcO6FrvuUw (subscriber) | oldState: DISCONNECTED | newState: CONNECTED | timestamp: 1588066046045  
[INFO] 2020-04-28 12:27:26,207 [entExec-e2-t581] io.openvidu.server.kurento.core.KurentoParticipantEndpointConfig - KMS event [MediaStateChangedEvent]: -\> endpoint: con\_E7YejzU5NZ\_str\_CAM\_Pqil\_con\_DcO6FrvuUw (subscriber) | oldState: DISCONNECTED | newState: CONNECTED | timestamp: 1588066046205  
[INFO] 2020-04-28 12:27:31,421 [entExec-e2-t581] io.openvidu.server.kurento.core.KurentoParticipantEndpointConfig - KMS event [IceComponentStateChange]: -\> endpoint: str\_CAM\_Pqil\_con\_DcO6FrvuUw (publisher) | state: READY | componentId: 1 | streamId: 1 | timestamp: 1588066051420  
[INFO] 2020-04-28 12:27:35,047 [entExec-e2-t581] io.openvidu.server.kurento.core.KurentoParticipantEndpointConfig - KMS event [IceComponentStateChange]: -\> endpoint: con\_E7YejzU5NZ\_str\_CAM\_Pqil\_con\_DcO6FrvuUw (subscriber) | state: READY | componentId: 1 | streamId: 1 | timestamp: 1588066055046  
[INFO] 2020-04-28 12:27:38,114 [entExec-e2-t581] io.openvidu.server.kurento.core.KurentoParticipantEndpointConfig - KMS event [IceComponentStateChange]: -\> endpoint: con\_KwjnZz5ob2\_str\_CAM\_Pqil\_con\_DcO6FrvuUw (subscriber) | state: READY | componentId: 1 | streamId: 1 | timestamp: 1588066058112  
[INFO] 2020-04-28 12:27:39,580 [nm9afmc-e124-t0] io.openvidu.server.rpc.RpcHandler - Participant con\_DcO6FrvuUw is calling method ‘disconnect’ in session 516101-Topic-2  
[INFO] 2020-04-28 12:27:39,581 [nm9afmc-e124-t0] io.openvidu.server.core.Session - PARTICIPANT con\_DcO6FrvuUw: Leaving session 516101-Topic-2  
[INFO] 2020-04-28 12:27:39,581 [nm9afmc-e124-t0] io.openvidu.server.kurento.core.KurentoParticipant - PARTICIPANT con\_E7YejzU5NZ: cancel receiving media from con\_DcO6FrvuUw  
[INFO] 2020-04-28 12:27:39,582 [nm9afmc-e124-t0] io.openvidu.server.kurento.core.KurentoParticipant - PARTICIPANT con\_E7YejzU5NZ: stopped receiving media from con\_DcO6FrvuUw in room 516101-Topic-2  
[INFO] 2020-04-28 12:27:39,589 [nm9afmc-e124-t0] io.openvidu.server.kurento.core.KurentoParticipant - PARTICIPANT con\_KwjnZz5ob2: cancel receiving media from con\_DcO6FrvuUw  
[INFO] 2020-04-28 12:27:39,589 [nm9afmc-e124-t0] io.openvidu.server.kurento.core.KurentoParticipant - PARTICIPANT con\_KwjnZz5ob2: stopped receiving media from con\_DcO6FrvuUw in room 516101-Topic-2  
[WARN] 2020-04-28 12:27:39,592 [nm9afmc-e124-t0] io.openvidu.server.kurento.core.KurentoParticipant - PARTICIPANT con\_DcO6FrvuUw: Trying to close subscriber endpoint to con\_E7YejzU5NZ. But the endpoint was never instantiated.  
[WARN] 2020-04-28 12:27:39,593 [nm9afmc-e124-t0] io.openvidu.server.kurento.core.KurentoParticipant - PARTICIPANT con\_DcO6FrvuUw: Trying to close subscriber endpoint to con\_KwjnZz5ob2. But the endpoint was never instantiated.  
[INFO] 2020-04-28 12:27:39,594 [nm9afmc-e124-t0] io.openvidu.server.coturn.CoturnCredentialsService - Deleting COTURN user  
[INFO] 2020-04-28 12:27:39,674 [nm9afmc-e124-t0] io.openvidu.server.coturn.CoturnCredentialsService - COTURN user deleted: true  
[INFO] 2020-04-28 12:27:39,677 [nm9afmc-e124-t0] io.openvidu.server.rpc.RpcNotificationService - Closed session for participant with private id ic1530slh2t4ko8rj0bnm9afmc  
[INFO] 2020-04-28 12:27:39,677 [nm9afmc-e124-t0] io.openvidu.server.rpc.RpcNotificationService - \<PRIVATE\_ID, RPC\_CONNECTION\>: {5k1fqgsdmpa3bso43s2ucfvf2h=io.openvidu.server.rpc.RpcConnection@bd417fa, e3j5hflp7qmcn7gmamvmsg9uv4=io.openvidu.server.rpc.RpcConnection@5c49450b}  
[INFO] 2020-04-28 12:27:39,678 [nm9afmc-e124-t0] io.openvidu.server.rpc.RpcHandler - Participant con\_DcO6FrvuUw has left session 516101-Topic-2  
[INFO] 2020-04-28 12:27:49,677 [TaskScheduler-1] io.openvidu.server.rpc.RpcHandler - After connection closed for WebSocket session: ic1530slh2t4ko8rj0bnm9afmc - Status: null  
[INFO] 2020-04-28 12:28:12,342 [msg9uv4-e120-t0] io.openvidu.server.rpc.RpcHandler - Participant con\_KwjnZz5ob2 is calling method ‘disconnect’ in session 516101-Topic-2  
[INFO] 2020-04-28 12:27:39,581 [nm9afmc-e124-t0] io.openvidu.server.core.Session - PARTICIPANT con\_DcO6FrvuUw: Leaving session 516101-Topic-2  
[INFO] 2020-04-28 12:27:39,581 [nm9afmc-e124-t0] io.openvidu.server.kurento.core.KurentoParticipant - PARTICIPANT con\_E7YejzU5NZ: cancel receiving media from con\_DcO6FrvuUw  
[INFO] 2020-04-28 12:27:39,582 [nm9afmc-e124-t0] io.openvidu.server.kurento.core.KurentoParticipant - PARTICIPANT con\_E7YejzU5NZ: stopped receiving media from con\_DcO6FrvuUw in room 516101-Topic-2  
[INFO] 2020-04-28 12:27:39,589 [nm9afmc-e124-t0] io.openvidu.server.kurento.core.KurentoParticipant - PARTICIPANT con\_KwjnZz5ob2: cancel receiving media from con\_DcO6FrvuUw  
[INFO] 2020-04-28 12:27:39,589 [nm9afmc-e124-t0] io.openvidu.server.kurento.core.KurentoParticipant - PARTICIPANT con\_KwjnZz5ob2: stopped receiving media from con\_DcO6FrvuUw in room 516101-Topic-2  
[WARN] 2020-04-28 12:27:39,592 [nm9afmc-e124-t0] io.openvidu.server.kurento.core.KurentoParticipant - PARTICIPANT con\_DcO6FrvuUw: Trying to close subscriber endpoint to con\_E7YejzU5NZ. But the endpoint was never instantiated.  
[WARN] 2020-04-28 12:27:39,593 [nm9afmc-e124-t0] io.openvidu.server.kurento.core.KurentoParticipant - PARTICIPANT con\_DcO6FrvuUw: Trying to close subscriber endpoint to con\_KwjnZz5ob2. But the endpoint was never instantiated.  
[INFO] 2020-04-28 12:27:39,594 [nm9afmc-e124-t0] io.openvidu.server.coturn.CoturnCredentialsService - Deleting COTURN user  
[INFO] 2020-04-28 12:27:39,674 [nm9afmc-e124-t0] io.openvidu.server.coturn.CoturnCredentialsService - COTURN user deleted: true  
[INFO] 2020-04-28 12:27:39,677 [nm9afmc-e124-t0] io.openvidu.server.rpc.RpcNotificationService - Closed session for participant with private id ic1530slh2t4ko8rj0bnm9afmc  
[INFO] 2020-04-28 12:27:39,677 [nm9afmc-e124-t0] io.openvidu.server.rpc.RpcNotificationService - \<PRIVATE\_ID, RPC\_CONNECTION\>: {5k1fqgsdmpa3bso43s2ucfvf2h=io.openvidu.server.rpc.RpcConnection@bd417fa, e3j5hflp7qmcn7gmamvmsg9uv4=io.openvidu.server.rpc.RpcConnection@5c49450b}  
[INFO] 2020-04-28 12:27:39,678 [nm9afmc-e124-t0] io.openvidu.server.rpc.RpcHandler - Participant con\_DcO6FrvuUw has left session 516101-Topic-2  
[INFO] 2020-04-28 12:27:49,677 [TaskScheduler-1] io.openvidu.server.rpc.RpcHandler - After connection closed for WebSocket session: ic1530slh2t4ko8rj0bnm9afmc - Status: null  
[INFO] 2020-04-28 12:28:12,342 [msg9uv4-e120-t0] io.openvidu.server.rpc.RpcHandler - Participant con\_KwjnZz5ob2 is calling method ‘disconnect’ in session 516101-Topic-2  
[INFO] 2020-04-28 12:28:12,344 [msg9uv4-e120-t0] io.openvidu.server.core.Session - PARTICIPANT con\_KwjnZz5ob2: Leaving session 516101-Topic-2  
[INFO] 2020-04-28 12:28:12,344 [msg9uv4-e120-t0] io.openvidu.server.kurento.core.KurentoParticipant - PARTICIPANT con\_E7YejzU5NZ: cancel receiving media from con\_KwjnZz5ob2  
[INFO] 2020-04-28 12:28:12,345 [msg9uv4-e120-t0] io.openvidu.server.kurento.core.KurentoParticipant - PARTICIPANT con\_E7YejzU5NZ: stopped receiving media from con\_KwjnZz5ob2 in room 516101-Topic-2  
[INFO] 2020-04-28 12:28:12,376 [msg9uv4-e120-t0] io.openvidu.server.coturn.CoturnCredentialsService - Deleting COTURN user  
[INFO] 2020-04-28 12:28:12,466 [msg9uv4-e120-t0] io.openvidu.server.coturn.CoturnCredentialsService - COTURN user deleted: true  
[ERROR] 2020-04-28 12:28:12,467 [msg9uv4-e120-t0] io.openvidu.server.rpc.RpcNotificationService - Exception sending notification ‘participantLeft’: {“connectionId”:“con\_KwjnZz5ob2”,“reason”:“disconnect”} to participant with private id 5k1fqgsdmpa3bso43s2ucfvf2h  
org.kurento.commons.exception.KurentoException: Exception while sending message ‘{“method”:“participantLeft”,“params”:{“connectionId”:“con\_KwjnZz5ob2”,“reason”:“disconnect”},“jsonrpc”:“2.0”}’ to websocket with native sessionId ‘451a00a4-45da-baf1-1ff9-9642f95289c7’  
at org.kurento.jsonrpc.internal.ws.WebSocketServerSession.sendRequestWebSocket(WebSocketServerSession.java:123)  
at org.kurento.jsonrpc.internal.ws.WebSocketServerSession.access$000(WebSocketServerSession.java:49)  
at org.kurento.jsonrpc.internal.ws.WebSocketServerSession$1.internalSendRequest(WebSocketServerSession.java:74)  
at org.kurento.jsonrpc.internal.JsonRpcRequestSenderHelper.sendRequest(JsonRpcRequestSenderHelper.java:75)  
at org.kurento.jsonrpc.internal.JsonRpcRequestSenderHelper.sendNotification(JsonRpcRequestSenderHelper.java:156)  
at org.kurento.jsonrpc.internal.server.ServerSession.sendNotification(ServerSession.java:121)  
at io.openvidu.server.rpc.RpcNotificationService.sendNotification(RpcNotificationService.java:105)  
at io.openvidu.server.core.SessionEventsHandler.onParticipantLeft(SessionEventsHandler.java:181)  
at io.openvidu.server.kurento.core.KurentoSessionManager.leaveRoom(KurentoSessionManager.java:195)  
at io.openvidu.server.rpc.RpcHandler.leaveRoom(RpcHandler.java:308)  
at io.openvidu.server.rpc.RpcHandler.handleRequest(RpcHandler.java:121)  
at org.kurento.jsonrpc.internal.JsonRpcHandlerManager.handleRequest(JsonRpcHandlerManager.java:142)  
at org.kurento.jsonrpc.internal.server.ProtocolManager$3.run(ProtocolManager.java:218)  
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)  
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)  
at java.lang.Thread.run(Thread.java:748)  
Caused by: java.lang.IllegalStateException: The WebSocket session [40] has been closed and no method (apart from close()) may be called on a closed session  
at org.apache.tomcat.websocket.WsSession.checkState(WsSession.java:836)  
at org.apache.tomcat.websocket.WsSession.getBasicRemote(WsSession.java:433)  
at org.springframework.web.socket.adapter.standard.StandardWebSocketSession.sendTextMessage(StandardWebSocketSession.java:215)  
at org.springframework.web.socket.adapter.AbstractWebSocketSession.sendMessage(AbstractWebSocketSession.java:106)  
at org.kurento.jsonrpc.internal.ws.WebSocketServerSession.sendRequestWebSocket(WebSocketServerSession.java:119)  
… 15 common frames omitted  
[ERROR] 2020-04-28 12:28:12,470 [msg9uv4-e120-t0] org.kurento.jsonrpc.internal.ws.JsonRpcWebSocketHandler - Trying to send a message to a closed session  
[INFO] 2020-04-28 12:28:12,470 [msg9uv4-e120-t0] io.openvidu.server.rpc.RpcNotificationService - Closed session for participant with private id e3j5hflp7qmcn7gmamvmsg9uv4  
[INFO] 2020-04-28 12:28:12,470 [msg9uv4-e120-t0] io.openvidu.server.rpc.RpcNotificationService - \<PRIVATE\_ID, RPC\_CONNECTION\>: {5k1fqgsdmpa3bso43s2ucfvf2h=io.openvidu.server.rpc.RpcConnection@bd417fa}  
[INFO] 2020-04-28 12:28:12,471 [msg9uv4-e120-t0] io.openvidu.server.rpc.RpcHandler - Participant con\_KwjnZz5ob2 has left session 516101-Topic-2  
[INFO] 2020-04-28 12:28:15,412 [entExec-e2-t581] io.openvidu.server.kurento.core.KurentoParticipantEndpointConfig - KMS event [MediaFlowOutStateChange] -\> endpoint: str\_CAM\_ZWhj\_con\_E7YejzU5NZ (publisher) | state: NOT\_FLOWING | pad: default | mediaType: VIDEO | timestamp: 1588066095411  
[INFO] 2020-04-28 12:28:15,418 [entExec-e2-t581] io.openvidu.server.kurento.core.KurentoParticipantEndpointConfig - KMS event [MediaFlowOutStateChange] -\> endpoint: str\_CAM\_ZWhj\_con\_E7YejzU5NZ (publisher) | state: NOT\_FLOWING | pad: default | mediaType: AUDIO | timestamp: 1588066095417  
[INFO] 2020-04-28 12:28:22,343 [TaskScheduler-1] io.openvidu.server.rpc.RpcHandler - After connection closed for WebSocket session: e3j5hflp7qmcn7gmamvmsg9uv4 - Status: null  
[INFO] 2020-04-28 12:28:22,349 [TaskScheduler-1] io.openvidu.server.rpc.RpcHandler - After connection closed for WebSocket session: 5k1fqgsdmpa3bso43s2ucfvf2h - Status: null  
[INFO] 2020-04-28 12:28:22,351 [TaskScheduler-1] io.openvidu.server.rpc.RpcNotificationService - Closed session for participant with private id 5k1fqgsdmpa3bso43s2ucfvf2h  
[INFO] 2020-04-28 12:28:22,351 [TaskScheduler-1] io.openvidu.server.rpc.RpcNotificationService - \<PRIVATE\_ID, RPC\_CONNECTION\>: {}  
[INFO] 2020-04-28 12:28:22,351 [TaskScheduler-1] io.openvidu.server.rpc.RpcHandler - Evicting participant with private id 5k1fqgsdmpa3bso43s2ucfvf2h because its websocket unexpectedly closed in the client side  
[INFO] 2020-04-28 12:28:22,351 [TaskScheduler-1] io.openvidu.server.core.Session - PARTICIPANT con\_E7YejzU5NZ: Leaving session 516101-Topic-2  
[INFO] 2020-04-28 12:28:22,364 [TaskScheduler-1] io.openvidu.server.coturn.CoturnCredentialsService - Deleting COTURN user  
[INFO] 2020-04-28 12:28:22,414 [TaskScheduler-1] io.openvidu.server.coturn.CoturnCredentialsService - COTURN user deleted: true  
[INFO] 2020-04-28 12:28:22,416 [TaskScheduler-1] io.openvidu.server.kurento.core.KurentoSessionManager - No more participants in session ‘516101-Topic-2’, removing it and closing it  
[INFO] 2020-04-28 12:28:22,417 [TaskScheduler-1] io.openvidu.server.core.SessionManager - Session ‘516101-Topic-2’ removed and closed  
[ERROR] 2020-04-28 12:28:22,419 [TaskScheduler-1] io.openvidu.server.rpc.RpcNotificationService - No rpc session found for private id 5k1fqgsdmpa3bso43s2ucfvf2h, unable to send notification participantEvicted: {“connectionId”:“con\_E7YejzU5NZ”,“reason”:“networkDisconnect”}  
[ERROR] 2020-04-28 12:28:22,419 [TaskScheduler-1] io.openvidu.server.rpc.RpcNotificationService - No rpc session found for private id 5k1fqgsdmpa3bso43s2ucfvf2h, unable to send notification participantEvicted: {“connectionId”:“con\_E7YejzU5NZ”,“reason”:“networkDisconnect”}  
[ERROR] 2020-04-28 12:28:22,419 [TaskScheduler-1] io.openvidu.server.rpc.RpcNotificationService - No session found for private id 5k1fqgsdmpa3bso43s2ucfvf2h, unable to cleanup  
[INFO] 2020-04-28 12:28:22,419 [TaskScheduler-1] io.openvidu.server.rpc.RpcHandler - Evicted participant with privateId 5k1fqgsdmpa3bso43s2ucfvf2h

---

<div class="post-metadata">

**Author:** ![isuhar](https://yyz2.discourse-cdn.com/free1/user_avatar/openvidu.discourse.group/isuhar/32/311_2.png) [@isuhar](https://openvidu.discourse.group/u/isuhar)\
**Post date:** [April 28, 2020, 10:40am UTC](https://openvidu.discourse.group/t/react-native-app-can-t-subscribe-to-stream/593/5 "2020-04-28T10:40:29Z")

</div>

This error does not occur every time, but very often

---

<div class="post-metadata">

**Author:** ![isuhar](https://yyz2.discourse-cdn.com/free1/user_avatar/openvidu.discourse.group/isuhar/32/311_2.png) [@isuhar](https://openvidu.discourse.group/u/isuhar)\
**Post date:** [April 28, 2020, 10:05pm UTC](https://openvidu.discourse.group/t/react-native-app-can-t-subscribe-to-stream/593/6 "2020-04-28T22:05:15Z")

</div>

This error is reproduced in react-native version 0.59.10, in 0.61.5 everything is ok. Will there be some solution for 0.59.10? We can not upgrade to 0.61.5 ((

---

<div class="post-metadata">

**Author:** ![micael.gallego](https://yyz2.discourse-cdn.com/free1/user_avatar/openvidu.discourse.group/micael.gallego/32/2_2.png) [@micael.gallego](https://openvidu.discourse.group/u/micael.gallego)\
**Post date:** [April 29, 2020, 11:50pm UTC](https://openvidu.discourse.group/t/react-native-app-can-t-subscribe-to-stream/593/7 "2020-04-29T23:50:39Z")

</div>

I’m sorry but we do not support old react-native versions.

Can you confirm that you don’t have any issue with version specified in the tutorial (0.61.5)?

---

<div class="post-metadata">

**Author:** ![isuhar](https://yyz2.discourse-cdn.com/free1/user_avatar/openvidu.discourse.group/isuhar/32/311_2.png) [@isuhar](https://openvidu.discourse.group/u/isuhar)\
**Post date:** [May 7, 2020, 5:40pm UTC](https://openvidu.discourse.group/t/react-native-app-can-t-subscribe-to-stream/593/8 "2020-05-07T17:40:20Z")

</div>

Yes, with 0.61.5 works. We updated the project) It was not easy