Android Studio 3.0 Unsigned Apk Not Installing
After upgrading to android studio 3.0 the debug apk is saying App not istalled. The package appears to be corrupted Looks like we can not directly use the apk after running on the device from the build->output->apk folder. After upgrading to android studio 3.0 you need to go to Build -> Build Apk(s) then copy the apk from build -> output -> apk -> debug Like this - Fist Click On Build Icon on android studio after that click Build APK(s) then Generate APK the copy Apk. It is working perfact. I needed to create a signed APK for it to install correctly. I have also faced the same problem after