How to solve "Could not load the Qt platform plugin "cocoa" in "" even though it was found."

[hskoglund]

Ok, please run that simple test app again from /dist/testapp, and while that QMessageBox is displayed, start a Terminal and type
lsof -c testapp

[leotest]

i have the same question,wait answer,please

[leotest]

no answer?please help

[hskoglund]

Hi, please create a new forum post and describe your problem, what version of Python and MacOS you have etc.

[leotest]

@hskoglund ok,thank u

[mkcol]

I fixed this on my machine by requiring py2app version 0.25

setup_requires=['py2app==0.25']
in the setup.py

This problem is described in https://github.com/ronaldoussoren/py2app/issues/380 and there's already a patch. Just don't use 0.26 and 0.27.