Why do I see "'build/scripts-3.7' does not exist -- can't clean it" when installing a compiled Python package?

I created a Python package with Compiler SDK, but when I try to install it I see the following:

$ python setup.py install
running install
running build
running build_py
creating build
creating build/lib
creating build/lib/libmakesqr
copying libmakesqr/__init__.py -> build/lib/libmakesqr
copying libmakesqr/libmakesqr.ctf -> build/lib/libmakesqr
running install_lib
running install_egg_info
Removing /Users/username/anaconda3/lib/python3.7/site-packages/matlabruntimeforpython-R2020a-py3.7.egg-info
Writing /Users/username/anaconda3/lib/python3.7/site-packages/matlabruntimeforpython-R2020a-py3.7.egg-info
removing 'build/lib' (and everything under it)
'build/bdist.macosx-10.9-x86_64' does not exist -- can't clean it
'build/bdist.win-amd64' does not exist -- can't clean it
'build/scripts-3.7' does not exist -- can't clean it
removing 'build'

Does the messages stating that a folder "does not exist -- can't clean it" mean that an error occurred? Will my Python library still work?

Answer 1

[MathWorks Support Team]

These messages do not necessarily mean that an error occurred and appear often even in successful installations of a Python package. They are simply informational - it is true that these folders do not exist, but that does not directly indicate any issue with the installation.