I'm getting an error when I try to run the patch to upgrade from v4.0 to v4.1. The details of the error are below. There's a problem with a file path.

An error occurred while installing the patch.
Could not find a part of the path 'E:\Surveys\Install\Patches\Checkbox Web 4.1/Install/Patches/Checkbox Web 4.1/LDAPAuthenticationProvider.xml'.