Running OpenVPN as client on Windows 7, I ran into the following error message:
The problem occurred, because the same .ovpn config file was once imported - and then copied to OpenVPN's config folder ("C:\Program Files\OpenVPN\config").There already exist a config file named '%s'. You cannot have multiple config files with the same name, even if they reside in diffrent folders.
On Windows 7, OpenVPN stores the configuration in 2 places:
- Global: C:\Program Files\OpenVPN\config
- Per-user: C:\Users\[YOUR_USERNAME]\OpenVPN\config
Simply delete the configuration file(s) ending in ".ovpn" either of these folders, depending if you want to keep the global or per-user configuration.