Android Studio 3.1 not showing build error details

https://stackoverflow.com/questions/49637589/android-studio-3-1-not-showing-build-error-details

There is a toggle button just below the build button that will show the verbose build logs. Tap that and you should be able to see errors like before AS 3.1.

build

亲测有效。

然后发现问题是：错误: No option eventBusIndex passed to annotation processor 导致编译失败

因为应用 EventBusAnnotationProcessor 却没有设置 arguments，编译时会报错：No option eventBusIndex passed to annotation processor，此时需要先编译一次，生成索引类。编译成功之后，会在 \ProjectName\app\build\generated\source\apt\PakageName\ 下看到通过注解分析生成的索引类，如此便可在初始化 EventBus 时应用生成的索引了。

解决办法：Remove compile 'org.greenrobot:eventbus-annotation-processor:3.0.1'