APK signature verification failed.

[harrydab]

Sample build went fine but when I run on emulator I get error message:
"02/14 20:24:13: Launching 'tm1637' on 5.1 WVGA API 22.
Installation did not succeed.
The application could not be installed: INSTALL_PARSE_FAILED_NO_CERTIFICATES
APK signature verification failed."

I am running on Android Studio 3.5.3 and Android 10.0 SDK

Any help would be appreciated. Thank you.