Below is the AS log：
Information:Gradle tasks [:app:assembleRelease]
Warning:com.roughike.bottombar.BottomNavigationBehavior: can't find referenced class com.roughike.bottombar.VerticalScrollingBehavior$ScrollDirection
Warning:there were 1 unresolved references to classes or interfaces.
Warning:Exception while processing task java.io.IOException: Please correct the above warnings first.
Error:Execution failed for task ':app:transformClassesAndResourcesWithProguardForRelease'.

Job failed, see logs for details

And I already text in my proguard file：
-keep class com.roughike.bottombar.**{*;}

Anyone tell me why？Million thanks！！！