I am developing in Android Studio (i've used IntelliJ IDEA + SDK) I've encountered debugging problem. All my breakpoints don't work in all projects. Exclusion is the breakpoint on the first line of a method for example:
Breakpoint on line 1 works, on line 2 doesn't
breakpoint's Hint tells that no sources found for this line. It seems like proguard is enabled, but it doesn't.
I have tried create new empty project (Gradle). It is also not working. Have You any idea?
I've solved the problem. I was running debugging on a real device (Nexus 4 with Android 4.4 KitKat). And I' have enabled ART instead Dalvik on the device. All breakpoint start to work when i've switched back to Dalvik.
来源：https://stackoverflow.com/questions/20179748/the-first-line-breakpoint-works-only