"App Not Installed" Error Fix

Common Causes and Fixes

1. Signature conflict: Uninstall any existing version of the app (including official YouTube if it has a different signature) before installing
2. Insufficient storage: Free up device storage
3. Unknown sources not enabled: Enable installation from unknown sources in Settings → Security
4. Corrupted APK: Re-download the APK file
5. Android version incompatible: Check minimum Android version requirements
6. Split APK issues: Ensure all required split APK files are installed together

Common Causes and Fixes

1. Signature conflict: Uninstall any existing version of the app (including official YouTube if it has a different signature) before installing
2. Insufficient storage: Free up device storage
3. Unknown sources not enabled: Enable installation from unknown sources in Settings → Security
4. Corrupted APK: Re-download the APK file
5. Android version incompatible: Check minimum Android version requirements
6. Split APK issues: Ensure all required split APK files are installed together

Causes and fixes

If the issue returns after a fix, note your YouTube base version, ReVanced Manager build, and whether GmsCore is installed. Mismatched versions are the most common cause of repeat failures.

Before factory-resetting or wiping app data, export subscriptions where the client supports it and confirm you downloaded patches from the official ReVanced GitHub organization.