error: cannot find symbol class UnityPlayer

[bbiaudet]

Hello, I encounter a compilation problem under android studio 3.1.2, when I delete the unity-classes.jar file in the libs folder of the android project, I have 7 compilation errors:

error: can not find UnityPlayer class symbol
error: can not find symbol class UnityPlayerActivity
error or method not applicable or a method from a supertype
error: registerReceiver (IonicToUnityBroadcastReceiver, IntentFilter)
error or method not applicable or a method from a supertype
error: can not find symbol variable super
error: can not find symbol method setResult (Int, Intent)

[yasirkula]

Did you change 'C:\\absolute path\\to your\\unity export folder' with your Unity export folder? Can you see UnityProject next to android in Project view in Android Studio?

[bbiaudet]

Yes I changed the way and the project unity is well linked in the project android studio.

[yasirkula]

Is there a unity-classes.jar located at UnityProject/libs? If so, can you verify that you've put compile project(':UnityProject') to the correct location?

[bbiaudet]

Yes is located at UnutyProject/libs.

If I leave the .jar in the android project I have a double class loading error

[yasirkula]

Does changing implementation project(':UnityProject') to compile project(':UnityProject') or api project(':UnityProject') solve the issue?

[bbiaudet]

no for api some error, for compile error is obsolete

[yasirkula]

I'm out of ideas. As a last resort, you can move UnityProject/libs/unity-classes.jar to android/libs.

[bbiaudet]

[yasirkula]

At this point, any help is appreciated.

[bbiaudet]

I managed the compilation, I just downgrade Gradle 4.4. at 3.5.

thanks again for help

[yasirkula]

That's great news! I may update the README if someone else encounters the same issue, as well.

[bbiaudet]

Yep!