Works in debug mode but not in release mode

[beingshashi]

This is working great in debug mode, but the app crashes while making release mode.
I am getting the following error -

2019-09-13 18:45:30.571 7602-7652/? A/example: thread.cc:2165] No pending exception expected: java.lang.ClassNotFoundException: Didn't find class "com.opentok.android.v3.Session$SessionException" on path: DexPathList[[zip file "/data/app/com.example--S17ODKUbR4oFH5vNXMxWw==/base.apk"],nativeLibraryDirectories=[/data/app/com.example--S17ODKUbR4oFH5vNXMxWw==/lib/arm64, /data/app/com.example--S17ODKUbR4oFH5vNXMxWw==/base.apk!/lib/arm64-v8a, /system/lib64]]
2019-09-13 18:45:30.855 7602-7652/? A/example: runtime.cc:562] native: #10 pc 00000000000da6d4 /data/app/com.example--S17ODKUbR4oFH5vNXMxWw==/lib/arm64/libopentok.so (JNI_OnLoad+312)
2019-09-13 18:45:31.374 7792-7792/? A/DEBUG: pid: 7602, tid: 7652, name: mqt_native_modu >>> com.example <<<
2019-09-13 18:45:31.374 7792-7792/? A/DEBUG: Abort message: 'thread.cc:2165] No pending exception expected: java.lang.ClassNotFoundException: Didn't find class "com.opentok.android.v3.Session$SessionException" on path: DexPathList[[zip file "/data/app/com.kinektapp.client--S17ODKUbR4oFH5vNXMxWw==/base.apk"],nativeLibraryDirectories=[/data/app/com.example--S17ODKUbR4oFH5vNXMxWw==/lib/arm64, /data/app/com.example--S17ODKUbR4oFH5vNXMxWw==/base.apk!/lib/arm64-v8a, /system/lib64]]'
2019-09-13 18:45:31.487 7792-7792/? A/DEBUG: #6 pc 00000000000da6d4 /data/app/com.example--S17ODKUbR4oFH5vNXMxWw==/lib/arm64/libopentok.so (JNI_OnLoad+312)
2019-09-13 18:45:31.487 7792-7792/? A/DEBUG: #18 pc 00000000003255ee /data/app/com.example--S17ODKUbR4oFH5vNXMxWw==/oat/arm64/base.vdex (com.opentok.android.v3.g.a.a+42)
2019-09-13 18:45:31.487 7792-7792/? A/DEBUG: #28 pc 0000000000325038 /data/app/com.example--S17ODKUbR4oFH5vNXMxWw==/oat/arm64/base.vdex (com.opentok.android.v3.debug.Log.)
2019-09-13 18:45:31.487 7792-7792/? A/DEBUG: #40 pc 0000000000324dd6 /data/app/com.example--S17ODKUbR4oFH5vNXMxWw==/oat/arm64/base.vdex (com.opentok.android.v3.debug.d.+30)
2019-09-13 18:45:31.488 7792-7792/? A/DEBUG: #46 pc 0000000000325588 /data/app/com.example--S17ODKUbR4oFH5vNXMxWw==/oat/arm64/base.vdex (com.opentok.android.v3.debug.i.a+16)
2019-09-13 18:45:31.488 7792-7792/? A/DEBUG: #56 pc 000000000032293c /data/app/com.example--S17ODKUbR4oFH5vNXMxWw==/oat/arm64/base.vdex (com.opentok.android.v3.Session.+4)
2019-09-13 18:45:31.488 7792-7792/? A/DEBUG: #66 pc 0000000000321eec /data/app/com.example--S17ODKUbR4oFH5vNXMxWw==/oat/arm64/base.vdex (com.opentok.android.v3.Session$Builder.a+4)
2019-09-13 18:45:31.488 7792-7792/? A/DEBUG: #72 pc 0000000000313638 /data/app/com.example--S17ODKUbR4oFH5vNXMxWw==/oat/arm64/base.vdex (com.opentok.android.k.+464)
2019-09-13 18:45:31.488 7792-7792/? A/DEBUG: #78 pc 000000000031315e /data/app/com.example--S17ODKUbR4oFH5vNXMxWw==/oat/arm64/base.vdex (com.opentok.android.k$j.a+50)
2019-09-13 18:45:31.488 7792-7792/? A/DEBUG: #84 pc 0000000000326a48 /data/app/com.example--S17ODKUbR4oFH5vNXMxWw==/oat/arm64/base.vdex (com.opentokreactnative.OTSessionManager.initSession+144)

[th317erd]

Do you have ProGuard stripping something it shouldn't from the final build?

[parasdaryanani]

This might be a bug in your react-native version, specifically if it's < 0.60.5, as ClassNotFoundException was fixed in this release.

See release notes of RN 0.60.5.

[drewandre]

I'm running RN 0.60.5 and seeing this issue. I've had to disable proguard in release mode for now. I tried adding the proguard config as described in this comment, but it threw some crazy R8 errors due to the -dontwarn line. We removed that, but the app still crashes when starting a video. So no more proguard until this is resolved or until someone could point us in the right direction regarding proguard config.

[mayuresh14]

any update? am facing same issue

[vncmaciel]

facing the same issue here with 2.17.0

[palmas]

Facing the same.
OpenTok team, please, give us correct proguard rules!

[xxsnakerxx]

for 2.17.x

-keep class com.opentok.android.** { *; }
-keep class com.opentok.otc.** { *; }
-keep class org.otwebrtc.** { *; }

-dontwarn com.opentok.android.**
-dontwarn com.opentok.otc.**

for 2.16.x

-keep class com.opentok.android.** { *; }
-keep class org.webrtc.** { *; }

-dontwarn com.opentok.android.**

[KiranRadish]

Can you please explain where we need to add these lines in react-native project?

[xxsnakerxx]

Can you please explain where we need to add these lines in react-native project?

android/app/proguard-rules.pro

[dp85]

In 2.22.1 I also needed to add:

-keep class com.vonage.** { *; }