AndroidStudio3.0 Canary 8注解报错Annotation processors must be explicitly declared now.

最新推荐文章于 2021-05-26 22:51:00 发布

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本文详细介绍了在使用Android Studio 3.0 Canary 8进行开发时，遇到ButterKnife注解处理器错误的问题及解决方案。主要错误信息为Annotation processors must be explicitly declared now，文章提供了修改app build.gradle文件的具体步骤，通过添加javaCompileOptions{annotationProcessorOptions{includeCompileClasspath=true}

原文地址：https://blog.youkuaiyun.com/keep_holding_on/article/details/76188657

体验最新版AndroidStudio3.0 Canary 8的时候，发现之前项目的butter knife报错，用到注解的应该都会报错
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
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.

在app的build中
android {
...
defaultConfig {
...
//添加如下配置就OK了
javaCompileOptions { annotationProcessorOptions { includeCompileClasspath = true } }
}
...
}