Android studio一直报错app:debugAnnotationProcessorClasspath

Error:Could not resolve all files for configuration ':app:debugAnnotationProcessorClasspath'.

Could not find com.jakewharton:butterknife-compiler:5.1.1.
Searched in the following locations:
file:/D:/mySoftware/sdk/extras/m2repository/com/jakewharton/butterknife-compiler/5.1.1/butterknife-compiler-5.1.1.pom
file:/D:/mySoftware/sdk/extras/m2repository/com/jakewharton/butterknife-compiler/5.1.1/butterknife-compiler-5.1.1.jar
file:/D:/mySoftware/sdk/extras/google/m2repository/com/jakewharton/butterknife-compiler/5.1.1/butterknife-compiler-5.1.1.pom
file:/D:/mySoftware/sdk/extras/google/m2repository/com/jakewharton/butterknife-compiler/5.1.1/butterknife-compiler-5.1.1.jar
file:/D:/mySoftware/sdk/extras/android/m2repository/com/jakewharton/butterknife-compiler/5.1.1/butterknife-compiler-5.1.1.pom
file:/D:/mySoftware/sdk/extras/android/m2repository/com/jakewharton/butterknife-compiler/5.1.1/butterknife-compiler-5.1.1.jar
file:/D:/mySoftware/Android/android-studio3.0/gradle/m2repository/com/jakewharton/butterknife-compiler/5.1.1/butterknife-compiler-5.1.1.pom
file:/D:/mySoftware/Android/android-studio3.0/gradle/m2repository/com/jakewharton/butterknife-compiler/5.1.1/butterknife-compiler-5.1.1.jar
https://dl.google.com/dl/android/maven2/com/jakewharton/butterknife-compiler/5.1.1/butterknife-compiler-5.1.1.pom
https://dl.google.com/dl/android/maven2/com/jakewharton/butterknife-compiler/5.1.1/butterknife-compiler-5.1.1.jar
https://jcenter.bintray.com/com/jakewharton/butterknife-compiler/5.1.1/butterknife-compiler-5.1.1.pom
https://jcenter.bintray.com/com/jakewharton/butterknife-compiler/5.1.1/butterknife-compiler-5.1.1.jar
Required by:
project :app

        已经按照步骤改了  可是一直报错   各种办法都试了!

butterknife 用 com.jakewharton:butterknife-compiler:8.4.0 版本试试

看看gradele 版本跟包里的版本是否匹配，我有一次的错误就出现在这。