'sudo port clean' fails

[bmayer@…]

I was performing a 'upgrade outdated' and ran into the issue: $ time sudo port upgrade outdated Password: ---> Computing dependencies for qwt61 Error: Unable to exec port: Can't install qwt61 because conflicting ports are active: qwt52 To report a bug, follow the instructions in the guide:

​http://guide.macports.org/#project.tickets

The next step is to do a 'sudo port clean' as near as I can tell, but that appears to have confused itself.

$ sudo port clean Can't map the URL '​file://.' to a port description file ("Could not find Portfile in /Users/xok"). Please verify that the directory and portfile syntax are correct. To use the current port, you must be in a port's directory.