unable to re-install a deleted app, any suggestion?

Question

I am using android studio and I can not re-install an app previously deleted. I try to re-install it in debug mode by the usb cable. No problem to install it on a device which never had this app.

I have the following message:

Error while executing: am start -n "fr.x.x/fr.x.x.DeviceScanActivity" -a android.intent.action.MAIN -c android.intent.category.LAUNCHER Starting: Intent { act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] cmp=fr.x.x/.DeviceScanActivity } Error type 3 Error: Activity class {fr.x.x/fr.x.x.DeviceScanActivity} does not exist.

Error while Launching activity Any idea?

Best regards Mich

Answer 1

I have been seeing this error often lately with Android Studio. What works for me is to bring up a Terminal window and then uninstall the app using adb:

adb uninstall fr.x.x 

using your example. In other words, adb uninstall your.package.name

If that fails to solve your problem then you can read through the mega thread for all the other possible solutions:

Error type 3 Error: Activity class {} does not exist