Category "dex"

Android app crashes at start with "E/dex2oat: Failed to create oat file" and "non-0 exit status"

My app (still WIP) runs fine on different devices. But suddenly it refuses to start on Huawei Honor 7 (Android 6.0/EMUI 4.0.3). Logcat gives me the following:

Android gives error "Cannot fit requested classes in a single dex file"

I don't know why but it's impossible to launch my app on my mobile this morning. I get this error message: Cannot fit requested classes in a single dex file. T