Unable to switch to debug build variant in Android Studio

Question

I\'ve switched to release build variant and configured signingConfigs. Now when I try to check the debug build variant from the drop down menu it switches immediately back to th

Answer 1

I ran into a similar issue. My module level build.gradle reflected configurations specified for "debug" AND "release" accordingly. I was able to successfully run my app on emulator and device (LG) prior To Building and Signing My Release Version Of My App. After Building and Signing The Release Version and attempting to Run The Signed APK on My Phone and Device, i received an Error PM Session 'mobile': Error Launching activity....Error while Launching activity..So I started retracing my steps and realized that before deploying the signed release variant, i opened up the run/debug Configurations Dialog

and mistakenly selected the the Value APK from app bundle value From The Deploy attribute, under the Installation category

I Signed My APK In its ENTIRETY and NOT Via Bundle, so the option selected was attempting to Deploy an invalid App Bundle That Was Never Generated To Begin With, even if it was for the correct Build Variant.