React Native Task :app:validateSigningDebug FAILED

Question

I am completely new to react-native and android. I have downloaded a project from Github and used commands yarn install and react-native run-android to

Answer 1

Based on @rabbit87's answer the solution is running the following command inside ProjectName/Andoid/app directory solves the problem

keytool -genkey -v -keystore debug.keystore -storepass android -alias androiddebugkey -keypass android -keyalg RSA -keysize 2048 -validity 10000