Sources not found BaseGameUtilities in Android Studio

Question

I have been trying to install Google Play Services for quite a few hours, but after trying to search everywhere I can't seem to find a solution to my problem. I think I have imported both the BaseGameUtils and the PlayGamesServices , and Android Studio automatically recognizes these in my app now, which for me seem like they are implemented.

However when I try to add the sign in button

<com.google.android.gms.common.SignInButton
    android:id="@+id/bHighScore"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:layout_alignBaseline="@+id/button1"
    android:layout_alignBottom="@+id/button1"
    android:layout_marginLeft="98dp"
    android:layout_toRightOf="@+id/button1"
    android:text="Highscore"
    />

It says

The following classes could not be instantiated:
- com.google.android.gms.common.SignInButton (Open Class, Show Exception)
java.lang.VerifyError: Expecting a stackmap frame at branch target 13

Exception Details: Location: com/google/android/gms/common/SignInButton.setStyle(II)V @1: iflt Reason: Expected stackmap frame at this location.

Bytecode:

0000000: 1b9b 000c 1b06 a200 0704 a700 0403 1206
0000010: 04bd 0014 5903 1bb8 002c 53b8 0028 1c9b
0000020: 000c 1c05 a200 0704 a700 0403 1207 04bd
0000030: 0014 5903 1cb8 002c 53b8 0028 2a1b b500
0000040: 182a 1cb5 0015 2a2a b600 23b7 0027 b1  

at java.lang.Class.getDeclaredConstructors0(Native Method)
at java.lang.Class.privateGetDeclaredConstructors(Class.java:2658)
at java.lang.Class.getConstructor0(Class.java:2964)
at java.lang.Class.getConstructor(Class.java:1812)
at org.jetbrains.android.uipreview.ViewLoader.createNewInstance(ViewLoader.java:310)
at org.jetbrains.android.uipreview.ViewLoader.loadView(ViewLoader.java:100)
at com.android.tools.idea.rendering.LayoutlibCallback.loadView(LayoutlibCallback.java:172)
at android.view.BridgeInflater.loadCustomView(BridgeInflater.java:207)
at android.view.BridgeInflater.createViewFromTag(BridgeInflater.java:132)
at android.view.LayoutInflater.rInflate_Original(LayoutInflater.java:802)
at android.view.LayoutInflater_Delegate.rInflate(LayoutInflater_Delegate.java:64)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:778)
at android.view.LayoutInflater.inflate(LayoutInflater.java:500)
at android.view.LayoutInflater.inflate(LayoutInflater.java:381)
at com.android.layoutlib.bridge.impl.RenderSessionImpl.inflate(RenderSessionImpl.java:400)
at com.android.layoutlib.bridge.Bridge.createSession(Bridge.java:329)
at com.android.ide.common.rendering.LayoutLibrary.createSession(LayoutLibrary.java:332)
at com.android.tools.idea.rendering.RenderService$3.compute(RenderService.java:575)
at com.android.tools.idea.rendering.RenderService$3.compute(RenderService.java:564)
at com.intellij.openapi.application.impl.ApplicationImpl.runReadAction(ApplicationImpl.java:932)
at com.android.tools.idea.rendering.RenderService.createRenderSession(RenderService.java:564)
at com.android.tools.idea.rendering.RenderService.render(RenderService.java:691)
at org.jetbrains.android.uipreview.AndroidLayoutPreviewToolWindowManager.doRender(AndroidLayoutPreviewToolWindowManager.java:586)
at org.jetbrains.android.uipreview.AndroidLayoutPreviewToolWindowManager.access$1900(AndroidLayoutPreviewToolWindowManager.java:80)
at org.jetbrains.android.uipreview.AndroidLayoutPreviewToolWindowManager$6$1.run(AndroidLayoutPreviewToolWindowManager.java:528)
at com.intellij.openapi.progress.impl.ProgressManagerImpl$2.run(ProgressManagerImpl.java:178)
at com.intellij.openapi.progress.ProgressManager.executeProcessUnderProgress(ProgressManager.java:209)
at com.intellij.openapi.progress.impl.ProgressManagerImpl.executeProcessUnderProgress(ProgressManagerImpl.java:212)
at com.intellij.openapi.progress.impl.ProgressManagerImpl.runProcess(ProgressManagerImpl.java:171)
at org.jetbrains.android.uipreview.AndroidLayoutPreviewToolWindowManager$6.run(AndroidLayoutPreviewToolWindowManager.java:523)
at com.intellij.util.ui.update.MergingUpdateQueue.execute(MergingUpdateQueue.java:320)
at com.intellij.util.ui.update.MergingUpdateQueue.execute(MergingUpdateQueue.java:310)
at com.intellij.util.ui.update.MergingUpdateQueue$2.run(MergingUpdateQueue.java:254)
at com.intellij.util.ui.update.MergingUpdateQueue.flush(MergingUpdateQueue.java:269)
at com.intellij.util.ui.update.MergingUpdateQueue.flush(MergingUpdateQueue.java:227)
at com.intellij.util.ui.update.MergingUpdateQueue.run(MergingUpdateQueue.java:217)
at com.intellij.util.concurrency.QueueProcessor.runSafely(QueueProcessor.java:238)
at com.intellij.util.Alarm$Request$1.run(Alarm.java:327)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)

And when I open the class it says Sources not found and I have no idea what to put in the attached sources.

Any help would be greatly appreciated.

Answer 1

I had this same issue , along with a compilation problem.

If you are attempting to compile to java 8 jdk bytecode, then the problem is actually in android itself -- Android only supports up to the java 7 jdk discussed here . However, you can, as mentioned in that article, try using retro-lambda , which via voodoo I don't understand converts java 8 bytecode back to java 7.

This does not mean you can't use jdk 1.8, you just have to compile to java 7 bytecode, and therefore natively cannot use java 8 syntactic sugar.

To fix this in your mobile build.gradle (here's what mine was)

apply plugin: 'com.android.application'

android {
    compileSdkVersion 'android-L'
    buildToolsVersion '20.0.0'

    defaultConfig {
        applicationId "com.example"
        minSdkVersion 17
        targetSdkVersion 'L'
        versionCode 1
        versionName "1.0"
    }
    buildTypes {
        release {
            runProguard false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }

    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }
}

dependencies {
    apply plugin: 'findbugs'
    compile fileTree(dir: 'libs', include: ['*.jar'])
    wearApp project(':wear')
    compile 'com.google.android.gms:play-services:5.0.89'
}

change the compile options to:

compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_7
        targetCompatibility JavaVersion.VERSION_1_7
    }
}