Can't delete self-programmed app

Question

Recently I bought a new computer and installed Android Studio on it. I transferred all te files necessary from my old computer so I could continue my work on my app.
The code was built and ready to upload to my device, but I got the message ' INSTALL_PARSE_FAILED_INCONSISTENT_CERTIFICATES', and Android Studio advised me to uninstall my app from my phone and try again.

Whe I tried this, I noticed the 'delete' button was greyed out, and in Settings -> Apps -> TestApp (name of my app) I noticed the buttons for 'Force quit', 'Move to SD-card', and 'Clear Cache' were all greyed out.

Is there anything I can do to make my phone delete my app, and to enable these functions in the future?

EDIT: after running adb uninstall mypackagename I got the result Failure [DELETE_FAILED_DEVICE_POLICY_MANAGER]. My app uses the Device Policy Manager for locking and unlocking the phone.

SOLVED: After looking up the error code, I found the solution here at StackOverflow.

Thank you very much everyone!

adb uninstall . it didn't help? – Omkar Nath Singh Sep 01 '17 at 17:50 — Omkar Nath Singh, Sep 01 '17 at 17:50
Have you tried deleting app after rebooting your phone? – Umar Hussain Sep 01 '17 at 17:50 — Umar Hussain, Sep 01 '17 at 17:50

score 2 · Answer 1 · answered Sep 01 '17 at 17:53

2

Try this command from adb, after connecting your phone to pc in usb debugging mode

adb uninstall yourapppackagename

Package name you can see from the app info in the phone or packageid from your app gradle file

answered Sep 01 '17 at 17:53

Umar Hussain

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score 2 · Accepted Answer · answered Jan 03 '19 at 11:26

After running adb uninstall mypackagename like Umar Hussain pointed out, I got the result Failure [DELETE_FAILED_DEVICE_POLICY_MANAGER]. My app uses the Device Policy Manager for locking and unlocking the phone.

After looking up the error code, I found the solution here at StackOverflow.

Can't delete self-programmed app

2 Answers2