ENOENT: no such file or directory, uv_chdir

Hi,
I have run my provision script but there is a fault: ext.Error ENOENT: no such file or directory, uv_chdir.

I can’t understand why, because I have put the cpe-config.js in …/genieacs-gui/genieacs/ext, is it wrong?
I have read the wiki and it says that…
Do I need another file?

http://docs.genieacs.com/en/latest/extensions.html