Here is the process of creating the apk, you could refer to it. Or you could change the package name, the error will be gone. The previous version of the application may be not uninstalled cleanly, try to clear the cache. operating system, and a number of other Android-based operating systems for distribution and installation of mobile apps, mobile games and middleware. I was now able to click on App1.apk and it installed fine without the error. When the app with same package name already exists, this error will occur. When you run your app for the first time, Android Studio uses a default run configuration. I pressed this and it said "Uninstall for all users". But in the top right corner there is a three dot button. Open Play Store application > tap on Menu button > select Play Protect option > Disable the options Scan device for. (I had set up my nexus to have more than one user). When clicking on the pale version it said "Not installed for this user". If youve installed Android Studio and Android SDK and adb is available, the emulator should be visible from Studio and work (deploy built apps.
The Entity List placement also means that Huawei cannot work with U.S.Huaweis Petal Search app finds third party app stores that house apps banned from Huawei phones. Solution for me: go back into settings/apps and scroll though all apps and at the bottom was a pale version of my App1 (note the original App1 was at the top in Alphabetical order which was deleted as above). Download Googlefier from the Android Xda-developers forum or apkmirror. Then I got the dreaded message "App not Installed"
I then opened google drive and clicked on my App1.apk and chose to install it (need to ensure you have allowed installation of apks in settings). After disconnecting my nexus from the usb, I went to the settings/apps and uninstalled my app (App1).
I then created a signed apk and uploaded to my Google Drive. For me the situation was this: I had deployed to my nexus 7 (actual device) from within the Android Studio (v1.3.2). Clearly there are many causes of this problem.