Error:Execution failed for task ':app:compileDebugJavaWithJavac'. > Compilation failed; see the compiler error output for details.
在控制台输入
gradlew compileDebugSources --stacktrace -info
在打印的log中找到问题
发现是缺少一些类的问题
Error running app: Default Activity Not Found
1、打开配置
将default Activity换成Nothing即可
Annotation processors must be explicitly declared now.
导入的项目中用到的butter knife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..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.
解决方法：
在build.gradle中添加如下配置
android {
...
defaultConfig {
...
javaCompileOptions { annotationProcessorOptions { includeCompileClasspath = true } }
}
...
}