錯誤：com.google.android.gms.common.SignInButton無法實例化。

Question

我正在嘗試運行Google Play遊戲服務樣本，而且我在這方面遇到了很多麻煩。

最初，試圖通過Eclipse中的「將現有代碼導入到Workspace」來打開現有代碼項目導致了各種我無法弄清楚的錯誤。即R.java沒有建造。我能夠只創建一個空白的項目，然後複製並粘貼在所有代碼和資源文件來解決這一點。

所以我的項目設置，和我所引用的google-play-services_lib和BaseGameUtils，所以有在MainActivity.java中沒有錯誤出現，並且它將全部編譯並構建好，但佈局編輯器不斷實例化com.google.android.gms.common.SignInButton。

我從下面的錯誤粘貼了完整的堆棧跟蹤。我想不出任何我錯過的東西，並且Eclipse中'Problems'窗口中唯一的事情是'應該明確地爲清單設置android：allowBackup爲true或false'。

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) 

Answer 1

我專注於你的軌線的第一線現在：

android.content.res.Resources$NotFoundException: Could not resolve resource value: 0x7F02000C. 

任何其他可能或不可能是錯的，你需要解決這個問題。首先，您是否確信您的項目沒有缺失資源？即你以不同尋常的方式建立了這個項目，如果你錯過了某些東西，這並不令人驚訝。

如果BaseGameUtils和Google Play服務庫已被清理，定義爲庫並在您的項目中引用並編譯好，那麼問題可能出在您的模擬器上。

你的模擬器上是否有Google API？

嘗試重新啓動模擬器。

如果一切看起來都不錯，我建議您閱讀本文檔以及與其鏈接的「故障排除指南」： https://github.com/playgameservices/android-samples/blob/master/README.md並考慮仔細重新開始每一步。

Answer 2

我有一個類似的問題，我也能夠通過重新啓動eclipse來解決它。但我無能爲力，爲什麼這工作。這可能有助於某個人。

Answer 3

添加這兩種gradles ......問題將得到解決

compile 'com.google.android.gms:play-services-auth:8.4.0' 
compile 'com.google.android.gms:play-services-plus:8.4.0'