How to fix app not installed [Android Studio]

Question

Problem

App not installed shows when installing signed apk. The Application will install without any problem for the first time, later if I uninstall and try to reinstall the same apk it shows App not installed

Tried the following things

Tried only with V1 signature
Tried only with V2 signature
Tried with both with V1 and V2 signature
Changed Build Variant to Release
Tried on 3 different devices
Uninstalled previous version from the device(for all users) and release folder
Removed cache memory of the smartphone.

Note :

I had error a while creating keystore Key was created with errors: Picked up _JAVA_OPTIONS: -Xmx512M last week but this was solved. But it was resolved by deleting _JAVA_OPTIONS from environment variables (https://stackoverflow.com/a/57556572/6088883) I think after this the started.

No Problem with codes

I am 100% sure that it's not a problem in the code Because of I tried making signed apk for the basic login activity application. didn't change a single line of code. But the result was same

Tried the following thread

None of them solved the issue

Temporary fix

The only method working was disabling Google Play Protect (which is not a proper fix)

Is there any Sensitive permissions you are asking? like Admin App? — GreenROBO, Sep 07 '19 at 07:26
No, Only permission used is for **sending SMS**. [Here](https://github.com/Mayoogh/SimpleSMSSender/blob/master/app/src/main/AndroidManifest.xml) is my Manifest.xml — Mayoogh Girish, Sep 07 '19 at 07:36
SMS permission might not be granted to malicious apps, no matter what the manifest says. — Martin Zeitler, Sep 07 '19 at 07:57
Have you tried this ? https://commonsware.com/blog/2017/10/31/android-studio-3p0-flag-test-only.html — Mayuri Khinvasara, Sep 07 '19 at 07:59
@MayuriK As per the [post](https://commonsware.com/blog/2017/10/31/android-studio-3p0-flag-test-only.html) I added ``android:testOnly="false"`` to my Manifest. Even tried [this one](https://gist.github.com/xujiaao/5fd127a72979cdc3c70dcc1324786f87) ``android.injected.testOnly=false`` in gradle.properties .But no positive result — Mayoogh Girish, Sep 07 '19 at 08:41
I have tried your code and it's running without any problems. There might be something wrong with your mobile or device. — GreenROBO, Sep 07 '19 at 08:50
Try Invalidate cache and restart for your android studio. It will remove any cached signatures on your device. — Mayuri Khinvasara, Sep 07 '19 at 09:55
@KRK Not yet. I even tried installing Android Studio on my Linux and had the same error. I have [submitted an appeal at Play Protect](https://support.google.com/googleplay/android-developer/contact/protectappeals) . Waiting for the reply — Mayoogh Girish, Sep 11 '19 at 07:58

score 1 · Answer 1 · edited Jan 25 '20 at 11:01

Just try adding Action VIEW in manifest file. After this, reinstall the app and the problem will be solved.

<activity
    android:name=".MyActivity"
    android:screenOrientation="portrait"
    android:label="@string/app_name">

    <intent-filter>

         // add this line of code in application tag  only single line of code will also work
       <action android:name="android.intent.action.VIEW" />

    </intent-filter>


</activity>

score 0 · Answer 2 · answered Sep 07 '19 at 08:28

0

This can also happen if the application is installed for multiple users. You should uninstall for all users. There are 2 ways to do that.

From the terminal/ shell: adb uninstall or adb uninstall [package_name]
Uninstall for all users(you need to be admin user):
1. Open Settings and then Apps
2. Open the app info
3. Open the overflow menu (3 vertical dots)
4. Choose Uninstall for all users.

answered Sep 07 '19 at 08:28

Usman Rafi

316
1
2
12

I already tried that one. Please see **Tried the following things** in my question. – Mayoogh Girish Sep 07 '19 at 08:36

score 0 · Answer 3 · answered Jun 06 '22 at 09:08

0

I know I am late but still is anyone find it time-saving.

None of the solutions were working for me and there were no changes except asset file changes. Wasted a lot of time over a silly issue. (Clean and rebuild project did not solve it for me)

Try File -> Invalidate Caches -> Invalidate and Restart.

answered Jun 06 '22 at 09:08

Pirate Gaming

1
1

Your answer could be improved with additional supporting information. Please [edit] to add further details, such as citations or documentation, so that others can confirm that your answer is correct. You can find more information on how to write good answers [in the help center](/help/how-to-answer). – Community Jun 06 '22 at 11:36