# Issues developing apps **URL:** https://openvidu.discourse.group/c/openvidu-v2/problems-developing-apps/7.md [Latest](https://openvidu.discourse.group/latest.md) · [Categories](https://openvidu.discourse.group/categories.md) · [Tags](https://openvidu.discourse.group/tags.md) --- ## [About the "Problems developing OpenVidu apps" category](https://openvidu.discourse.group/t/about-the-problems-developing-openvidu-apps-category/16)
**Author:** [@micael.gallego](https://openvidu.discourse.group/u/micael.gallego)\ **Replies:** 6\ **Last updated:** [May 24, 2021, 10:35pm UTC](https://openvidu.discourse.group/t/about-the-problems-developing-openvidu-apps-category/16 "2021-05-24T22:35:57Z")
If you have some problem when developing OpenVidu based apps ask here. Usually, problems are easy to solve with a bit of help. Please review OpenVidu documentation before asking here. If you think some problem is likel… --- ## [Welcome to OpenVidu Community Site](https://openvidu.discourse.group/t/welcome-to-openvidu-community-site/7)
**Author:** [@system](https://openvidu.discourse.group/u/system)\ **Replies:** 1\ **Last updated:** [January 6, 2020, 7:27pm UTC](https://openvidu.discourse.group/t/welcome-to-openvidu-community-site/7 "2020-01-06T19:27:04Z")
Welcome to OpenVidu Community Site. Here you can ask for help when building OpenVidu based applications and discuss about future roadmap and plans. Stay tuned for news and request for feedback. --- ## [Openvidu 2.32.x build issue](https://openvidu.discourse.group/t/openvidu-2-32-x-build-issue/5456)
**Author:** [@poojakamra](https://openvidu.discourse.group/u/poojakamra)\ **Replies:** 4\ **Last updated:** [December 19, 2025, 10:44am UTC](https://openvidu.discourse.group/t/openvidu-2-32-x-build-issue/5456 "2025-12-19T10:44:59Z")
Hi, I am trying to build openvidu 2.32.x version which is recently released as per given documentation: Developing OpenVidu - OpenVidu Docs But when i ran command “mvn -DskipTests=true clean install”, the error is “Fa… --- ## [Camera image is low light](https://openvidu.discourse.group/t/camera-image-is-low-light/5389)
**Author:** [@alvarocda](https://openvidu.discourse.group/u/alvarocda)\ **Replies:** 2\ **Last updated:** [July 3, 2025, 9:43am UTC](https://openvidu.discourse.group/t/camera-image-is-low-light/5389 "2025-07-03T09:43:36Z")
I am running a video conferencing service using OpenVidu 2.31.0 I am using the components of the openvidu-angular lib and the application works perfectly. However, some users are having problems where the camera image … --- ## [Rear Camera Issue on Mobile Devices Post System Upgrade](https://openvidu.discourse.group/t/rear-camera-issue-on-mobile-devices-post-system-upgrade/5381)
**Author:** [@Ravindra](https://openvidu.discourse.group/u/Ravindra)\ **Replies:** 4\ **Last updated:** [June 11, 2025, 10:46am UTC](https://openvidu.discourse.group/t/rear-camera-issue-on-mobile-devices-post-system-upgrade/5381 "2025-06-11T10:46:51Z")
Dear @pabloFuente , @cruizba We are currently facing an issue with the rear camera during our survey operations. Specifically, in some cases, the rear camera not open on mobile devices. At this point, we are unsure whet… --- ## [OpenVidu 2 Pro - Users random connection failure](https://openvidu.discourse.group/t/openvidu-2-pro-users-random-connection-failure/5295)
**Author:** [@Aba](https://openvidu.discourse.group/u/Aba)\ **Replies:** 8\ **Last updated:** [February 21, 2025, 4:53pm UTC](https://openvidu.discourse.group/t/openvidu-2-pro-users-random-connection-failure/5295 "2025-02-21T16:53:58Z")
We built and app in react frontend, java spring backend and unity webgl. When users join, a group, they are suppose to show up in my list of users in React and connect audio/video. But sometimes, some users can’t connect… --- ## [How to Handle Retry for OpenVidu Webhook Failures](https://openvidu.discourse.group/t/how-to-handle-retry-for-openvidu-webhook-failures/5248)
**Author:** [@chlwndks333](https://openvidu.discourse.group/u/chlwndks333)\ **Replies:** 1\ **Last updated:** [December 10, 2024, 11:51pm UTC](https://openvidu.discourse.group/t/how-to-handle-retry-for-openvidu-webhook-failures/5248 "2024-12-10T23:51:48Z")
Content: I am currently working with OpenVidu’s webhook service, which sends HTTP POST requests to a specified endpoint (OPENVIDU\_WEBHOOK\_ENDPOINT). However, I have noticed that if the endpoint fails to respond with a 2… --- ## [Security issues in Openvidu 2.29](https://openvidu.discourse.group/t/security-issues-in-openvidu-2-29/5072)
**Author:** [@poojakamra](https://openvidu.discourse.group/u/poojakamra)\ **Replies:** 17\ **Last updated:** [September 23, 2024, 11:46am UTC](https://openvidu.discourse.group/t/security-issues-in-openvidu-2-29/5072 "2024-09-23T11:46:15Z")
We are using openvidu 2.29 community edition. All the development is done but before delpoying the solution, we need to scan the components to check the security issues. When we run scan on openvidu’s docker images, aro… --- ## [How to customize the pre-join screen in OpenVidu v2.30.0](https://openvidu.discourse.group/t/how-to-customize-the-pre-join-screen-in-openvidu-v2-30-0/5186)
**Author:** [@Eduardo](https://openvidu.discourse.group/u/Eduardo)\ **Replies:** 1\ **Last updated:** [September 20, 2024, 3:19pm UTC](https://openvidu.discourse.group/t/how-to-customize-the-pre-join-screen-in-openvidu-v2-30-0/5186 "2024-09-20T15:19:29Z")
Hello, I am customizing the layout of OpenVidu based on the “openvidu-custom-layout” project. However, I noticed that this approach only allows modifying the call screen. I would like to know how I can customize the pre-… --- ## [Audio of another HTML5 video player get muffled/interrupted when creating audio publisher](https://openvidu.discourse.group/t/audio-of-another-html5-video-player-get-muffled-interrupted-when-creating-audio-publisher/5190)
**Author:** [@Yomtidom](https://openvidu.discourse.group/u/Yomtidom)\ **Replies:** 0\ **Last updated:** [September 18, 2024, 9:18am UTC](https://openvidu.discourse.group/t/audio-of-another-html5-video-player-get-muffled-interrupted-when-creating-audio-publisher/5190 "2024-09-18T09:18:54Z")
I have a single webpage with a HTML5 video playing an mp4 file. It plays well until i create an audio publisher using openvidu-browser-2.30.0.min.js: the audio of the movie gets interrupted, I can hear random little aud… --- ## [Issue "WebRTC native module not found" after installing openvidu-react-native-adapter 2.3.0 in Expo app](https://openvidu.discourse.group/t/issue-webrtc-native-module-not-found-after-installing-openvidu-react-native-adapter-2-3-0-in-expo-app/5176)
**Author:** [@Eduardo](https://openvidu.discourse.group/u/Eduardo)\ **Replies:** 3\ **Last updated:** [September 11, 2024, 7:56pm UTC](https://openvidu.discourse.group/t/issue-webrtc-native-module-not-found-after-installing-openvidu-react-native-adapter-2-3-0-in-expo-app/5176 "2024-09-11T19:56:05Z")
Hello! I am facing an issue while implementing the openvidu-react-native-adapter version 2.3.0 in an Expo application. After installing it, the following errors appear whenever I try to start my project: I have alrea… --- ## [How to get network quality of other publishers after joining?](https://openvidu.discourse.group/t/how-to-get-network-quality-of-other-publishers-after-joining/3728)
**Author:** [@plorenz-etes](https://openvidu.discourse.group/u/plorenz-etes)\ **Replies:** 2\ **Last updated:** [September 11, 2024, 8:16am UTC](https://openvidu.discourse.group/t/how-to-get-network-quality-of-other-publishers-after-joining/3728 "2024-09-11T08:16:56Z")
So I implemented a network quality indicator using the networkQualityLevelChanged event, which works like a charm. However, there is one issue I can’t solve: This event is only fired when the network quality level change… --- ## [Share screen stereo sound?](https://openvidu.discourse.group/t/share-screen-stereo-sound/5170)
**Author:** [@jalmasi](https://openvidu.discourse.group/u/jalmasi)\ **Replies:** 0\ **Last updated:** [August 19, 2024, 2:12pm UTC](https://openvidu.discourse.group/t/share-screen-stereo-sound/5170 "2024-08-19T14:12:38Z")
Hi, can someone confirm that when we get stereo sound when sharing screen? I get mono, no matter what. Though audio track does have two channels. --- ## [Docker image https](https://openvidu.discourse.group/t/docker-image-https/5161)
**Author:** [@jalmasi](https://openvidu.discourse.group/u/jalmasi)\ **Replies:** 2\ **Last updated:** [August 8, 2024, 12:10pm UTC](https://openvidu.discourse.group/t/docker-image-https/5161 "2024-08-08T12:10:33Z")
Hi, I’m using openvidu 2.17.0 for quite a while now, like this: docker run -p 4443:4443 --rm -e OPENVIDU\_SECRET=MY\_SECRET -e DOMAIN\_OR\_PUBLIC\_IP=192.168.1.115 openvidu/openvidu-server-kms:2.17.0 Thought I’ll upgrade t… --- ## [Session expiration timeout](https://openvidu.discourse.group/t/session-expiration-timeout/5163)
**Author:** [@arshak1826](https://openvidu.discourse.group/u/arshak1826)\ **Replies:** 1\ **Last updated:** [August 8, 2024, 9:25am UTC](https://openvidu.discourse.group/t/session-expiration-timeout/5163 "2024-08-08T09:25:47Z")
We use OpenVidu v2.18.0 and the session is automatically closed at once (without timeout) when all participants leave the session. Usedd mentioned configurations. OPENVIDU\_SESSIONS\_GARBAGE\_INTERVAL=900 OPENVIDU\_SESSI… --- ## [Videodimensions changes its values during the video call](https://openvidu.discourse.group/t/videodimensions-changes-its-values-during-the-video-call/5136)
**Author:** [@gonzalo\_trujillo](https://openvidu.discourse.group/u/gonzalo_trujillo)\ **Replies:** 2\ **Last updated:** [July 19, 2024, 12:24pm UTC](https://openvidu.discourse.group/t/videodimensions-changes-its-values-during-the-video-call/5136 "2024-07-19T12:24:03Z")
Hello everyone, I have a doubt about the video size during a video call. In our app developed using Ionic, Angular and openvidu-browser, we have noticed that in the iOS version when the user changes the orientation of … --- ## [Video background: More blur](https://openvidu.discourse.group/t/video-background-more-blur/5109)
**Author:** [@richard\_appsari](https://openvidu.discourse.group/u/richard_appsari)\ **Replies:** 1\ **Last updated:** [June 11, 2024, 4:33pm UTC](https://openvidu.discourse.group/t/video-background-more-blur/5109 "2024-06-11T16:33:25Z")
Does anyone know how to increase the level of blur for a video background? We basically just apply; .stream.applyFilter("VB:blur", {}); and have not been able to find a command that adds more bluriness. Thank you! --- ## [Media (video, audio) extraction or real-time transmission](https://openvidu.discourse.group/t/media-video-audio-extraction-or-real-time-transmission/3282)
**Author:** [@buck](https://openvidu.discourse.group/u/buck)\ **Replies:** 5\ **Last updated:** [June 4, 2024, 9:39pm UTC](https://openvidu.discourse.group/t/media-video-audio-extraction-or-real-time-transmission/3282 "2024-06-04T21:39:30Z")
I am currently running two instances: the AWS instance that configures the openvidu server and the instance that serves the Spring boot application. I uploaded the tutorial application to the server with Spring boot ref… --- ## [Camera access denied error testing connection on dashboard](https://openvidu.discourse.group/t/camera-access-denied-error-testing-connection-on-dashboard/5105)
**Author:** [@factor3](https://openvidu.discourse.group/u/factor3)\ **Replies:** 0\ **Last updated:** [June 2, 2024, 2:19am UTC](https://openvidu.discourse.group/t/camera-access-denied-error-testing-connection-on-dashboard/5105 "2024-06-02T02:19:45Z")
I am uncertain if this is the right venue to describe the problem I am having. If it is not, someone please point me to the right venue. I have set up and am running a Docker openVidu container as a preliminary for som… --- ## [Gap between audio and video in custom recording](https://openvidu.discourse.group/t/gap-between-audio-and-video-in-custom-recording/5103)
**Author:** [@schauspielervideos](https://openvidu.discourse.group/u/schauspielervideos)\ **Replies:** 2\ **Last updated:** [May 31, 2024, 7:43am UTC](https://openvidu.discourse.group/t/gap-between-audio-and-video-in-custom-recording/5103 "2024-05-31T07:43:28Z")
We had an offset of one to two seconds between the video track and the audio track in our recordings. The offset was only visible in some players, but was particularly noticeable during subsequent rendering (in our case… --- ## [Flutter app for mediasoup deployment](https://openvidu.discourse.group/t/flutter-app-for-mediasoup-deployment/4980)
**Author:** [@farid](https://openvidu.discourse.group/u/farid)\ **Replies:** 1\ **Last updated:** [May 18, 2024, 12:27pm UTC](https://openvidu.discourse.group/t/flutter-app-for-mediasoup-deployment/4980 "2024-05-18T12:27:05Z")
Is there any tutorial regarding implementation of an app (any language) without using ov-videoconference library with mediasoup? I’m trying to connect my flutter app with OV Enterprise mediasoup deployment. --- ## [Inconsistent connection issue on iOS 17](https://openvidu.discourse.group/t/inconsistent-connection-issue-on-ios-17/4992)
**Author:** [@jere](https://openvidu.discourse.group/u/jere)\ **Replies:** 3\ **Last updated:** [May 10, 2024, 6:08am UTC](https://openvidu.discourse.group/t/inconsistent-connection-issue-on-ios-17/4992 "2024-05-10T06:08:53Z")
Hello. We have noticed inconsistent connection issue on iOS 17 devices. When connecting or switching camera in an ongoing session with one or more participants, sometimes the camera feed from iOS 17 device does not rea… --- ## [Error on electron-openvidu sample code](https://openvidu.discourse.group/t/error-on-electron-openvidu-sample-code/5074)
**Author:** [@\_8\_A802](https://openvidu.discourse.group/u/_8_A802)\ **Replies:** 0\ **Last updated:** [May 8, 2024, 3:54am UTC](https://openvidu.discourse.group/t/error-on-electron-openvidu-sample-code/5074 "2024-05-08T03:54:58Z")
\[ICE\_CONNECTION\_DISCONNECTED\] Stream str\_CAM\_PqUQ\_con\_D6gav7VQZt (Publisher) failed to reconnect after ICE\_CONNECTION\_DISCONNECTED. Current ICE connection state: checking OpenViduLogger.error @ C:\\workspace\\openvidu-rea… --- ## [Share screen video freezing](https://openvidu.discourse.group/t/share-screen-video-freezing/5070)
**Author:** [@Arthur\_Reis](https://openvidu.discourse.group/u/Arthur_Reis)\ **Replies:** 0\ **Last updated:** [May 3, 2024, 2:08pm UTC](https://openvidu.discourse.group/t/share-screen-video-freezing/5070 "2024-05-03T14:08:45Z")
I’m encountering an issue in OpenVidu where, when sharing the screen in a room created with React OpenVidu 2.28 and Kurento Media Server on AWS, the shared screen video freezes while the audio continues to work normally.… --- ## [Main Thread Checker: UI API called on a background thread: -\[UIView setSize](https://openvidu.discourse.group/t/main-thread-checker-ui-api-called-on-a-background-thread-uiview-setsize/5067)
**Author:** [@John\_Kennedy](https://openvidu.discourse.group/u/John_Kennedy)\ **Replies:** 0\ **Last updated:** [May 2, 2024, 8:33am UTC](https://openvidu.discourse.group/t/main-thread-checker-ui-api-called-on-a-background-thread-uiview-setsize/5067 "2024-05-02T08:33:02Z")
Main Thread Checker: UI API called on a background thread: -\[UIView setSize:\] PID: 781, TID: 78231, Thread name: (none), Queue name: org.webrtc.cameravideocapturer.video, QoS: 25 Backtrace: 4 WebRTC … --- ## [Seeking advice on how to debug hacky audio](https://openvidu.discourse.group/t/seeking-advice-on-how-to-debug-hacky-audio/5064)
**Author:** [@richard\_appsari](https://openvidu.discourse.group/u/richard_appsari)\ **Replies:** 1\ **Last updated:** [April 26, 2024, 1:19pm UTC](https://openvidu.discourse.group/t/seeking-advice-on-how-to-debug-hacky-audio/5064 "2024-04-26T13:19:27Z")
Hi! We have a SaaS where caregivers meet patients, and we offer the video session functionality as part of the subscription, in web and app. We have openvidu on premise, one master and one node (v.2.28) (we will increa… --- ## [Resording not start Automatic in Version 2.20](https://openvidu.discourse.group/t/resording-not-start-automatic-in-version-2-20/5053)
**Author:** [@Ravindra](https://openvidu.discourse.group/u/Ravindra)\ **Replies:** 0\ **Last updated:** [April 11, 2024, 8:14am UTC](https://openvidu.discourse.group/t/resording-not-start-automatic-in-version-2-20/5053 "2024-04-11T08:14:35Z")
Dear Carlos, Pablo, Could you Please help , we setup new version of OpenVidu 2.20, but we are getting the error in console. Recording is not started automatic here, I have to start manually with the help of Inspector. … --- ## [Aumentar tamaño de imagen de participantes no moderadores](https://openvidu.discourse.group/t/aumentar-tamano-de-imagen-de-participantes-no-moderadores/5052)
**Author:** [@asastreb](https://openvidu.discourse.group/u/asastreb)\ **Replies:** 0\ **Last updated:** [April 9, 2024, 9:07am UTC](https://openvidu.discourse.group/t/aumentar-tamano-de-imagen-de-participantes-no-moderadores/5052 "2024-04-09T09:07:46Z")
Al hacer uso de la videollamada, me sucede lo siguiente: como moderador, no puedo hacer grande al resto de participantes. como participante, puedo hacer grande al moderador. ¿Esto está así definido o se trataría de un… --- ## [Openvidu-angular and angular/material version 15](https://openvidu.discourse.group/t/openvidu-angular-and-angular-material-version-15/5043)
**Author:** [@Christopher\_Guy](https://openvidu.discourse.group/u/Christopher_Guy)\ **Replies:** 0\ **Last updated:** [April 2, 2024, 3:57pm UTC](https://openvidu.discourse.group/t/openvidu-angular-and-angular-material-version-15/5043 "2024-04-02T15:57:49Z")
updating my app to use angular 15 and angular/material version 15. But even using the latest “openvidu-angular”: “^2.29.3” I get errors saying dependencies are angular 14 and material 14. is there a fix to this? error… --- ## [Issue using network quality API](https://openvidu.discourse.group/t/issue-using-network-quality-api/5027)
**Author:** [@Lucas\_Silva](https://openvidu.discourse.group/u/Lucas_Silva)\ **Replies:** 4\ **Last updated:** [March 27, 2024, 8:31am UTC](https://openvidu.discourse.group/t/issue-using-network-quality-api/5027 "2024-03-27T08:31:00Z")
I’m trying to implement network quality in the front-end using React, but I only receive the event upon connecting and no more after that. I have configured the server according to the documentation, and I believe the pr… [Next page](https://openvidu.discourse.group/c/openvidu-v2/problems-developing-apps/7.md?page=1)