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I'm getting 4 errors when trying to build a apk with android googleplay template: (AGK2 version 2018.04.12 / Android Studio version 3.1.1 / NDK version 11)

error: cannot find symbol class GoogleSignIn
error: cannot find symbol class GoogleSignInStatusCodes
error: cannot find symbol class GoogleSignIn
error: cannot find symbol class GoogleSignInClient


A made the following changes to allow the template to build a apk:

In build.gradle in the AGK2Template folder after:

compile 'com.google.android.gms:play-services-location:11.8.0'

add:

compile 'com.google.android.gms:play-services-drive:11.8.0'
compile 'com.google.android.gms:play-services-auth:11.8.0'

AGKHelper.java

At line 39 add the following:

import com.google.android.gms.auth.api.signin.GoogleSignIn;
import com.google.android.gms.auth.api.signin.GoogleSignInAccount;
import com.google.android.gms.auth.api.signin.GoogleSignInClient;
import com.google.android.gms.auth.api.signin.GoogleSignInStatusCodes;
import com.google.android.gms.auth.api.signin.GoogleSignInOptions;

Sorry but my fix allowed the apk to build but it crashes when it runs:

--------- beginning of crash
04-20 21:38:57.734 20789-20789/com.mycompany.mytemplate E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.mycompany.mytemplate, PID: 20789
java.lang.UnsatisfiedLinkError: Unable to load native library "/data/app/com.mycompany.mytemplate-1/lib/arm/libandroid_player.so": undefined symbol: ANativeActivity_onCreate
at android.app.NativeActivity.onCreate(NativeActivity.java:182)
at com.thegamecreators.agk_player.AGKActivity.onCreate(AGKActivity.java:30)
at android.app.Activity.performCreate(Activity.java:6672)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1140)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2612)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2724)
at android.app.ActivityThread.-wrap12(ActivityThread.java)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1473)
at android.os.Handler.dispatchMessage(Handler.java:102)
at android.os.Looper.loop(Looper.java:154)
at android.app.ActivityThread.main(ActivityThread.java:6123)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:867)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:757)

It looks like something went wrong when compiling the C++ portion, but I've not seen that happen before. Did you use the jniCompile.bat file provided or did you compile it some other way?

I found my mistake. I didn't update my NDK to r16b. I was still using r11c.

Also if anyone else has warnings and cannot compile with NDK 16. Add this line to turn off "Treat Warnings as Errors"

LOCAL_DISABLE_FATAL_LINKER_WARNINGS = true

in this file:

android-ndk-r16b\build\core\build-binary.mk

Thanks!