app sigining error. can someone help me with this error

[geemoddie]

how to fix this error: app:validateSigningRelease FAILED FAILURE: Build failed with an exception. * What went wrong: Execution failed for task ':app:validateSigningRelease'. > Keystore file not set for signing config release

[bobbyjones]

did you create a keystore?

Edit: if on android these instructions should help.
https://developer.android.com/studio/pu ... pp-signing