error: [Errno 13] Permission denied: 'build/bdist.macosx-10.14-intel/python2.7-standalone/app/lib-dynload'

[Dog517]

Hello, whenever I try to build my app, it says :

error: [Errno 13] Permission denied: 'build/bdist.macosx-10.14-intel/python2.7-standalone/app/lib-dynload'

and its driving me nuts! Can anyone help?

[ronaldoussoren]

Is this something you can reproduce in a project that you can share publicly?

Btw. Please consider moving away from Python 2.7, maintenance on Python 2 has stopped in 2020 and the next feature release of py2app will no longer support Python 2.

[Dog517]

But i am on python 3 i thought...

[ronaldoussoren]

Interesting. The error message mentions "python2.7-standalone" which should only happen when using Python 2.7.

Could you check if removing the "build" and "dist" folders fixes the problem?

Also check if you have an active virtual environment if you start python3 using "python". That's something that has bitten me multiple times, and continues to do so from time to time.