Session 'app' error while installing APK

Question

I am having difficulty importing a project written on Android Studio 1.1 into Android Studio 2.1.2. I keep getting this error whenever the gradle is building before testing

Answer 1

In my case, going to Settings>Build, Execution, Development>Compiler>Command-line options and removing the --dry-run flag fixed it for me. Not sure why that was there in the first place, but it solved it for me.