错误记录

Error:Execution failed for task ‘:app:preDebugAndroidTestBuild‘.
> Conflict with dependency ‘com.android.support:support-annotations‘ in project ‘:app‘. Resolved versions for app (26.1.0) and test app (27.1.1) differ. See https://d.android.com/r/tools/test-apk-dependency-conflicts.html for details.

这里是因为android studio更新 依赖项冲突造成的  所以修改这里就可以了

错误记录

原文：https://www.cnblogs.com/vampire-diaries/p/9072647.html