小编mer*_*hou的帖子

当id将android studio更新到3.6 android gradle工具到3.6.0时，出现问题。当我生成sign apk时，出现异常？是这样的

 Execution failed for task ':app:minifyReleaseWithR8'.java.lang.NullPointerException (no error message)
* Exception is:
10:35:36.483 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter] org.gradle.api.tasks.TaskExecutionException: Execution failed for task ':app:minifyReleaseWithR8'.
10:35:36.483 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]   at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter$3.accept(ExecuteActionsTaskExecuter.java:166)
10:35:36.483 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]   at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter$3.accept(ExecuteActionsTaskExecuter.java:163)
10:35:36.483 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]   at org.gradle.internal.Try$Failure.ifSuccessfulOrElse(Try.java:191)
10:35:36.483 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]   at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.execute(ExecuteActionsTaskExecuter.java:156)
10:35:36.484 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]   at org.gradle.api.internal.tasks.execution.ValidatingTaskExecuter.execute(ValidatingTaskExecuter.java:62)
10:35:36.484 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]   at org.gradle.api.internal.tasks.execution.SkipEmptySourceFilesTaskExecuter.execute(SkipEmptySourceFilesTaskExecuter.java:108)
10:35:36.484 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]   at org.gradle.api.internal.tasks.execution.ResolveBeforeExecutionOutputsTaskExecuter.execute(ResolveBeforeExecutionOutputsTaskExecuter.java:67)
10:35:36.484 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]   at org.gradle.api.internal.tasks.execution.ResolveAfterPreviousExecutionStateTaskExecuter.execute(ResolveAfterPreviousExecutionStateTaskExecuter.java:46)
....
Caused by: java.lang.NullPointerException
10:35:36.486 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]   at com.android.tools.r8.naming.A.a(:7)
10:35:36.486 [ERROR] [org.gradle.internal.buildevents.BuildExceptionReporter]   at com.android.tools.r8.naming.A.c(:1)
10:35:36.487 …