contain annotation processor.  Please add them to the annotationProcessor configuration.
    - butterknife-7.0.1.jar
  Alternatively, set android.defaultConfig.javaCompileOptions.annotationProcessorOptions.includeCompileClasspath = true to continue with previous behavior.  Note that this option is deprecated and
 
 will be removed in the future.

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• 修改

android {
    ...
    defaultConfig {
        ...
        javaCompileOptions {
            annotationProcessorOptions {
                includeCompileClasspath = true  
            }
        }
    }
}

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新增上面配置就好…………….