Android studio升级到3.0.1报错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.
解决方法:
看了下官方文档,大意是在说,工程里的某个module依赖了某个jar包,然后jar里面又用到了注解,在新的gradle版本里,需要写新的groovy代码来对每个引用注解的地方单独配置。在以往的版本中,gradle会默认给每个module都依赖一个annotationProcess,导致很多多余的对annotationProcess的依赖,老版本中的默认方法,会在将来版本中被删除。
直接在app/build.gradle(准确的说是每个涉及到注解依赖的module的build.gradle)上加一行
defaultConfig { applicationId "com.bll.framework" minSdkVersion 21 targetSdkVersion 25 versionCode 1 versionName "1.0" testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner" //添加如下配置就OK了 javaCompileOptions { annotationProcessorOptions { includeCompileClasspath = true } } }