Have error when doing ./gradlew generateCode during quick tutorial


I’m following the quick tutorial and at the step 3 when doing the ./gradlew generateCode, I have the following error :

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':modules:axelor-contact:generateCode'.
> C:\Users\...\axelor-tuto\modules\axelor-contact\src\license\header.txt (
The specified path was not found)

Any help ?