在androidstudiox3.0上依赖了butterknife7.0.1的版本，运行时出现了如下错误
Error:Execution failed for task ':app:javaPreCompileDebug'.
> Annotation processors must be explicitly declared now. The following dependencies on the compile classpath are found to contain annotation processor. Please add them to the annotationProcessor configuration.
- butterknife-7.0.1.jar (com.jakewharton:butterknife:7.0.1)
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.
See https://developer.android.com/r/tools/annotation-processor-error-message.html for more details.
这种的解决方案是：
在你module的build.gradle文件中添加如下代码即可
代码如下：
javaCompileOptions{
annotationProcessorOptions{
includeCompileClasspath=true
}
}
