Androidstudio3.0CanaryNPE更新后

我将Android Studio Canary从2更新为3(当前版本),现在我在构建项目时遇到错误:

2017-06-15 16:32:00,831 [ thread 12]   INFO - e.project.sync.GradleSyncState - Gradle sync failed: Cause: java.lang.NullPointerException
at com.android.build.gradle.internal.ide.AndroidArtifactOutputImpl.getGeneratedManifest(AndroidArtifactOutputImpl.java:110)
at sun.reflect.GeneratedMethodAccessor283.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:498)
at org.gradle.tooling.internal.adapter.ProtocolToModelAdapter$ReflectionMethodInvoker.invoke(ProtocolToModelAdapter.java:592)
at org.gradle.tooling.internal.adapter.ProtocolToModelAdapter$AdaptingMethodInvoker.invoke(ProtocolToModelAdapter.java:397)
at org.gradle.tooling.internal.adapter.ProtocolToModelAdapter$PropertyCachingMethodInvoker.invoke(ProtocolToModelAdapter.java:625)
at org.gradle.tooling.internal.adapter.ProtocolToModelAdapter$SafeMethodInvoker.invoke(ProtocolToModelAdapter.java:647)
at org.gradle.tooling.internal.adapter.ProtocolToModelAdapter$SupportedPropertyInvoker.invoke(ProtocolToModelAdapter.java:670)
at org.gradle.tooling.internal.adapter.ProtocolToModelAdapter$InvocationHandlerImpl.invoke(ProtocolToModelAdapter.java:356)
at com.sun.proxy.$Proxy198.getGeneratedManifest(Unknown Source)
at com.android.tools.idea.gradle.project.model.ide.android.IdeAndroidArtifactOutput.(IdeAndroidArtifactOutput.java:49)
at com.android.tools.idea.gradle.project.model.ide.android.IdeAndroidArtifactImpl.lambda$new$0(IdeAndroidArtifactImpl.java:48)
at com.android.tools.idea.gradle.project.model.ide.android.ModelCache.lambda$computeIfAbsent$0(ModelCache.java:31)
at java.util.HashMap.computeIfAbsent(HashMap.java:1126)
at com.android.tools.idea.gradle.project.model.ide.android.ModelCache.computeIfAbsent(ModelCache.java:31)
at com.android.tools.idea.gradle.project.model.ide.android.IdeModel.copy(IdeModel.java:71)
at com.android.tools.idea.gradle.project.model.ide.android.IdeAndroidArtifactImpl.(IdeAndroidArtifactImpl.java:48)
at com.android.tools.idea.gradle.project.model.ide.android.IdeVariantImpl.lambda$new$0(IdeVariantImpl.java:51)
at com.android.tools.idea.gradle.project.model.ide.android.ModelCache.lambda$computeIfAbsent$0(ModelCache.java:31)
at java.util.HashMap.computeIfAbsent(HashMap.java:1126)
at com.android.tools.idea.gradle.project.model.ide.android.ModelCache.computeIfAbsent(ModelCache.java:31)
at com.android.tools.idea.gradle.project.model.ide.android.IdeVariantImpl.(IdeVariantImpl.java:50)
at com.android.tools.idea.gradle.project.model.ide.android.IdeAndroidProjectImpl.lambda$new$4(IdeAndroidProjectImpl.java:80)
at com.android.tools.idea.gradle.project.model.ide.android.ModelCache.lambda$computeIfAbsent$0(ModelCache.java:31)
at java.util.HashMap.computeIfAbsent(HashMap.java:1126)
at com.android.tools.idea.gradle.project.model.ide.android.ModelCache.computeIfAbsent(ModelCache.java:31)
at com.android.tools.idea.gradle.project.model.ide.android.IdeModel.copy(IdeModel.java:71)
at com.android.tools.idea.gradle.project.model.ide.android.IdeAndroidProjectImpl.(IdeAndroidProjectImpl.java:80)
at com.android.tools.idea.gradle.project.model.ide.android.IdeAndroidProjectImpl.(IdeAndroidProjectImpl.java:63)
at com.android.tools.idea.gradle.project.model.AndroidModuleModel.(AndroidModuleModel.java:125)
at com.android.tools.idea.gradle.project.sync.idea.AndroidGradleProjectResolver.populateModuleContentRoots(AndroidGradleProjectResolver.java:202)
at org.jetbrains.plugins.gradle.service.project.GradleProjectResolver.doResolveProjectInfo(GradleProjectResolver.java:366)
at org.jetbrains.plugins.gradle.service.project.GradleProjectResolver.access$200(GradleProjectResolver.java:79)
at org.jetbrains.plugins.gradle.service.project.GradleProjectResolver$ProjectConnectionDataNodeFunction.fun(GradleProjectResolver.java:902)
at org.jetbrains.plugins.gradle.service.project.GradleProjectResolver$ProjectConnectionDataNodeFunction.fun(GradleProjectResolver.java:886)
at org.jetbrains.plugins.gradle.service.execution.GradleExecutionHelper.execute(GradleExecutionHelper.java:219)
at org.jetbrains.plugins.gradle.service.project.GradleProjectResolver.resolveProjectInfo(GradleProjectResolver.java:139)
at org.jetbrains.plugins.gradle.service.project.GradleProjectResolver.resolveProjectInfo(GradleProjectResolver.java:79)
at com.intellij.openapi.externalSystem.service.remote.RemoteExternalSystemProjectResolverImpl.lambda$resolveProjectInfo$0(RemoteExternalSystemProjectResolverImpl.java:37)
at com.intellij.openapi.externalSystem.service.remote.AbstractRemoteExternalSystemService.execute(AbstractRemoteExternalSystemService.java:59)
at com.intellij.openapi.externalSystem.service.remote.RemoteExternalSystemProjectResolverImpl.resolveProjectInfo(RemoteExternalSystemProjectResolverImpl.java:37)
at com.intellij.openapi.externalSystem.service.remote.wrapper.ExternalSystemProjectResolverWrapper.resolveProjectInfo(ExternalSystemProjectResolverWrapper.java:45)
at com.intellij.openapi.externalSystem.service.internal.ExternalSystemResolveProjectTask.doExecute(ExternalSystemResolveProjectTask.java:66)
at com.intellij.openapi.externalSystem.service.internal.AbstractExternalSystemTask.execute(AbstractExternalSystemTask.java:139)
at com.intellij.openapi.externalSystem.service.internal.AbstractExternalSystemTask.execute(AbstractExternalSystemTask.java:125)
at com.intellij.openapi.externalSystem.util.ExternalSystemUtil$3.execute(ExternalSystemUtil.java:388)
at com.intellij.openapi.externalSystem.util.ExternalSystemUtil$5.run(ExternalSystemUtil.java:445)
at com.intellij.openapi.progress.impl.CoreProgressManager$TaskRunnable.run(CoreProgressManager.java:726)
at com.intellij.openapi.progress.impl.CoreProgressManager.lambda$runProcess$1(CoreProgressManager.java:176)
at com.intellij.openapi.progress.impl.CoreProgressManager.registerIndicatorAndRun(CoreProgressManager.java:556)
at com.intellij.openapi.progress.impl.CoreProgressManager.executeProcessUnderProgress(CoreProgressManager.java:501)
at com.intellij.openapi.progress.impl.ProgressManagerImpl.executeProcessUnderProgress(ProgressManagerImpl.java:66)
at com.intellij.openapi.progress.impl.CoreProgressManager.runProcess(CoreProgressManager.java:163)
at com.intellij.openapi.progress.impl.ProgressManagerImpl$1.run(ProgressManagerImpl.java:137)
at com.intellij.openapi.application.impl.ApplicationImpl$2.run(ApplicationImpl.java:334)
at java.util.concurrent.Executors$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)

在更新之前一切正常.我试图Invalidate/Restart但没有成功.有谁知道这个错误的原因以及如何解决它？

在从一个Git分支切换到另一个分支后,Android Studio 3.0 Canary 4上的mw也发生了同样的事情 - 当时没有更新工作室或插件.

最后是一个组合

gradlew clean assembleDebug 从控制台和

File -> Invalidate Caches / Restart 在Android Studio中

执行约.3次帮助了我,但仍然不知道问题出在哪里.

它是一个众所周知的问题:在这里记录

就这样做吧

从菜单栏中构建>清理项目.

然后通过单击工具栏中的"同步项目" 将项目文件与Gradle同步.