minecraft not opening

everytime i try to run the game with the mod i have it just says this:

FAILURE: Build failed with an exception.
* What went wrong:
Task 'runClient' not found in root project 'bunger'.
* Try:
Run gradle tasks to get a list of available tasks. Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.
* Get more help at https://help.gradle.org
 not sure what it means, please help