Android download problem: failed to install/update GuitarTuna

Updates to Google Play Store can cause problems when you install or update Android applications. The app download process gets stuck and error codes may pop up too.

Check the following steps to troubleshoot the issue. 

Uninstall and reinstall Play Store updates

1. Make sure you’re connected to a reliable Wi-Fi connection.
2. On your Android phone or tablet, open the Settings app.
3. Tap Apps & notifications/Application Manager (depending on your android device). 
4. Tap Google Play Store. If you don't see it, tap See all apps or App info.
5. At the top of the screen, tap the three dots then tap Uninstall updates.
6. If you’re asked if you want to change the Play Store app back to the factory version, tap OK.
7. Open the Google Play Store, and try to download GuitarTuna again.

Check for Android system updates

• On your Android phone or tablet, open the Settings app.
• Scroll down & select About phone → System updates. 
• Check to see if an update is available. 

Clear Google Play store cache and data

1. Open your device's Settings app.
2. Tap Apps & notifications → See all apps.
3. Scroll down and tap Google Play Store .
4. Tap Storage → Clear Cache.
5. Next, tap Clear data.
6. Re-open the Play Store & try your download again.

You can find more troubleshooting tips from Google Play support here.