新建项目时 gradle build 报错
* What went wrong:
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.
按照报错提示,百度后试了各种办法,还是有这个错误,请问老师如何解决呢