I am having some problems with using PyInstaller to package a project. I have used it successfully in the past for simpler scripts, but I am attempting to package a larger project (pyqt4 gui that calls multiple scrips and modules) and I get the following error:

IOError: [Errno 13] Permission denied: 'C\Users\username\AppData\Roaming\pyinstaller\bincache01_py27_64bi\qt4_plugins\imageformats\qsvg4.dll'

I'm running pyinstaller from a command prompt with admin privileges. I've checked the permission on the file in question and I definitely have all permissions for that file.
I haven't been able to find anything that's helped, most of the people reporting similar issues seemed to solved them by running from a command prompt with admin privileges. If anyone has any ideas or advice that would be greatly appreciated. 
Thank you.
Had the same issue, pyinstaller -F script.py without the build on the command prompt worked for me.
Permissions Error with PyInstaller (running as admin)