ClassNotFoundException on release mode

[bilalsammour]

Hi there.

The app exits when opening the video call on release mode only.

I have investigated then found where the issue is, I have found the issues, the issue is: No pending exception expected: java.lang.ClassNotFoundException: com.opentok.android.SubscriberKit$SubscriberAudioStats.

I have attached the full error message as a text file, and screenshot as well.

Please advise.

TokBox error.txt

[supriyaBharti15]

Hi, I also having the same issue with release build. App is crashing while starting audio or video call. Development build its not crashing. Please suggest the solution for this.

[supriyaBharti15]

Hi there.

The app exits when opening the video call on release mode only.

I have investigated then found where the issue is, I have found the issues, the issue is: No pending exception expected: java.lang.ClassNotFoundException: com.opentok.android.SubscriberKit$SubscriberAudioStats.

I have attached the full error message as a text file, and screenshot as well.

Please advise.

TokBox error.txt

Hi bilalsammour, Just add below code to you proguard-rule file of your project. Its fixed crash in my kotlin project.

opentok

-keep class com.opentok.android.v3. { ; } -keep class com.opentok.android.v3.$ { ; } -keep public class * extends com.opentok.android.v3.OpentokException -keep class com.opentok.android. { ; } -keep class com.opentok.android.Session { ; } -keep class com.opentok.client. { *; } -keep class com.opentok.impl. { *; } -keep class com.opentok.otc. { *; } -keep class org.webrtc.* { ; } -keep class org.otwebrtc. { *; } -keep class org.otwebrtc.voiceengine. { ; } -keep class org.otwebrtc.WebRtcClassLoader {;} -keep class org.otwebrtc.voiceengine61. { ; } -keep class org.otwebrtc.voiceengine.BuildInfo { ; }

-dontwarn com.opentok. -keepclassmembers class com.opentok. { *; }

[bilalsammour]

Hi, I also having the same issue with release build. App is crashing while starting audio or video call. Development build its not crashing. Please suggest the solution for this.

I found a workaround to fix the issue:

• Open app build.gradle.
• Under buildTypes then release, add the following at the end:

minifyEnabled false
shrinkResources false

useProguard true
proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'

• Create proguard-rules.pro file to be in the same folder with build.gradle.
• In the created file add the following line:

-keep class androidx.lifecycle.DefaultLifecycleObserver

That is it.

[emartynov]

Do you guys consider to have example with the obfuscation rules? Do you guys consider to ship with obfuscation rules inside aar file?

[CamiiloAF]

useProguard was removed in gradle 7.0.0. If you're using gradle >7.0.0 just add the following lines under buildTypes :

minifyEnabled false shrinkResources false