I'm trying to run the Google Play Games Services samples, and I'm having a lot of trouble doing so.
Initially, trying to open the existing code projects via 'Import Existing Code into Workspace' in Eclipse was resulting in all sorts of errors that I couldn't figure out. Namely that the R.java wasn't building. I was able to work around that by just creating a blank project and copy-pasting all the code and resource files in.
So I have the project set-up, and I've referenced the google-play-services_lib and BaseGameUtils, so there are no errors showing up in MainActivity.java, and it'll all compile and build okay, but the layout editor keeps spitting out com.google.android.gms.common.SignInButton failed to instantiate.
I've pasted the full stacktrace from the error below. I can't think of anything that I'm missing, and the only thing in the 'Problems' window in Eclipse is 'should explicitly set android:allowBackup to true or false' for the manifest.
android.content.res.Resources$NotFoundException: Could not resolve resource value: 0x7F02000C.
at android.content.res.BridgeResources.throwException(BridgeResources.java:693)
at android.content.res.BridgeResources.getDrawable(BridgeResources.java:164)
at com.google.android.gms.internal.aa.b(Unknown Source)
at com.google.android.gms.internal.aa.a(Unknown Source)
at com.google.android.gms.common.SignInButton.c(Unknown Source)
at com.google.android.gms.common.SignInButton.d(Unknown Source)
at com.google.android.gms.common.SignInButton.setStyle(Unknown Source)
at com.google.android.gms.common.SignInButton.<init>(Unknown Source)
at com.google.android.gms.common.SignInButton.<init>(Unknown Source)
at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method)
at sun.reflect.NativeConstructorAccessorImpl.newInstance(Unknown Source)
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source)
at java.lang.reflect.Constructor.newInstance(Unknown Source)
at com.android.ide.eclipse.adt.internal.editors.layout.ProjectCallback.instantiateClass(ProjectCallback.java:422)
at com.android.ide.eclipse.adt.internal.editors.layout.ProjectCallback.loadView(ProjectCallback.java:179)
at android.view.BridgeInflater.loadCustomView(BridgeInflater.java:207)
at android.view.BridgeInflater.createViewFromTag(BridgeInflater.java:135)
at android.view.LayoutInflater.rInflate_Original(LayoutInflater.java:746)
at android.view.LayoutInflater_Delegate.rInflate(LayoutInflater_Delegate.java:64)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:718)
at android.view.LayoutInflater.rInflate_Original(LayoutInflater.java:749)
at android.view.LayoutInflater_Delegate.rInflate(LayoutInflater_Delegate.java:64)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:718)
at android.view.LayoutInflater.inflate(LayoutInflater.java:489)
at android.view.LayoutInflater.inflate(LayoutInflater.java:372)
at com.android.layoutlib.bridge.impl.RenderSessionImpl.inflate(RenderSessionImpl.java:385)
at com.android.layoutlib.bridge.Bridge.createSession(Bridge.java:332)
at com.android.ide.common.rendering.LayoutLibrary.createSession(LayoutLibrary.java:325)
at com.android.ide.eclipse.adt.internal.editors.layout.gle2.RenderService.createRenderSession(RenderService.java:440)
at com.android.ide.eclipse.adt.internal.editors.layout.gle2.RenderPreview.renderSync(RenderPreview.java:560)
at com.android.ide.eclipse.adt.internal.editors.layout.gle2.RenderPreview.access$5(RenderPreview.java:506)
at com.android.ide.eclipse.adt.internal.editors.layout.gle2.RenderPreview$RenderJob.runInUIThread(RenderPreview.java:1230)
at org.eclipse.ui.progress.UIJob$1.run(UIJob.java:95)
at org.eclipse.swt.widgets.RunnableLock.run(RunnableLock.java:35)
at org.eclipse.swt.widgets.Synchronizer.runAsyncMessages(Synchronizer.java:135)
at org.eclipse.swt.widgets.Display.runAsyncMessages(Display.java:4144)
at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3761)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$9.run(PartRenderingEngine.java:1053)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:942)
at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:86)
at org.eclipse.ui.internal.Workbench$5.run(Workbench.java:588)
at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:332)
at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:543)
at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:149)
at org.eclipse.ui.internal.ide.application.IDEApplication.start(IDEApplication.java:124)
at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:110)
at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:79)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:353)
at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:180)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:629)
at org.eclipse.equinox.launcher.Main.basicRun(Main.java:584)
at org.eclipse.equinox.launcher.Main.run(Main.java:1438)
at org.eclipse.equinox.launcher.Main.main(Main.java:1414)
I'm focusing on the first line of your trace for now :
android.content.res.Resources$NotFoundException: Could not resolve resource value: 0x7F02000C.
Whatever else may or may not be wrong, you need to fix this. Firstly, are you confident that no resources are missing from your project ? i.e. you built this project in an unusual way and it would not be surprising if you had missed out something.
If BaseGameUtils and the Google Play Services lib have been cleaned, defined as libraries and referenced in your project and compile ok then the problem is probably with your emulator.
Does you emulator have the Google APIs on it ?
Try restarting the emulator.
If everything looks ok, I suggest you review this document and the "troubleshooting guide" that is linked from it: https://github.com/playgameservices/android-samples/blob/master/README.md and consider starting again from scratch going though each step carefully.