AndroidJavaException: java.lang.ClassNotFoundException: inappbrowser.kokosoft.co

[cyberben3d]

I build the sample scene “ExampleScene” to Android. When I click Open google.com! nothing happens. If I look at the log using adb it says this:

08-17 15:28:28.514 14475 14532 E Unity : AndroidJavaException: java.lang.ClassNotFoundException: inappbrowser.kokosoft.com.Helper
08-17 15:28:28.514 14475 14532 E Unity : java.lang.ClassNotFoundException: inappbrowser.kokosoft.com.Helper
08-17 15:28:28.514 14475 14532 E Unity : at java.lang.Class.classForName(Native Method)
08-17 15:28:28.514 14475 14532 E Unity : at java.lang.Class.forName(Class.java:454)
08-17 15:28:28.514 14475 14532 E Unity : at com.unity3d.player.UnityPlayer.nativeRender(Native Method)
08-17 15:28:28.514 14475 14532 E Unity : at com.unity3d.player.UnityPlayer.access$300(Unknown Source:0)
08-17 15:28:28.514 14475 14532 E Unity : at com.unity3d.player.UnityPlayer$e$1.handleMessage(Unknown Source:83)
08-17 15:28:28.514 14475 14532 E Unity : at android.os.Handler.dispatchMessage(Handler.java:103)
08-17 15:28:28.514 14475 14532 E Unity : at android.os.Looper.loop(Looper.java:214)
08-17 15:28:28.514 14475 14532 E Unity : at com.unity3d.player.UnityPlayer$e.run(Unknown Source:20)
08-17 15:28:28.514 14475 14532 E Unity : Caused by: java.lang.ClassNotFoundException: inappbrowser.kokosoft.com.Helper

[Piotr]

Did you import jar file from Plugins/Android? It seems it isn’t part of your build.

[cyberben3d]

Yes, I mean it’s sitting there in the plugins folder. And the checkmark for Android platform is set. How can I make sure it makes it into the build? I made a separate test project and it worked fine in a fresh project. But this is a complex project with lots of other jars. I have Firebase for example. Is it the Android manifest?

[cyberben3d]

I figured it out. My project is set under Publishing Settings to Minify using Proguard. That seems to cause the problem. I only enabled that because the instructions for Firebase set to do it. Hopefully setting it to None won’t be an issue.

[Piotr]

You probably should disable proguard for running against inappbrowser packages and left it for rest of the app.

[it.dadkhah]

Which checkmark did you uncheck exactly? I have the same problem.
InAppBrowser.jar exists in the Plugins/Android folder. Also I reimported InAppBrowser again. But it didn’t work.

• This reply was modified 3 years, 1 month ago by it.dadkhah.

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