Unable to install mod

[Boersgard]

I get the following error in CKAN:

Quote

About to install...

 * Mk2 Stockalike Expansion 2:1.8.1 (cached)



Oh no!

It looks like you're trying to install a mod which is already installed,
or which conflicts with another mod which is already installed.

As a safety feature, the CKAN will *never* overwrite or alter a file
that it did not install itself.

If you wish to install Mk2Expansion 2:1.8.1 via the CKAN,
then please manually uninstall the mod which owns:

Ships/VAB/M2X Stork.craft

and try again.

Your GameData has been returned to its original state.

Error!

 

How do I find out which mod contains the .craft file, and would it be possible to just delete whatever that file is, rather than uninstall the offending mod?

Edited May 26, 2018 by Boersgard

[Gargamel]

Well, I would hazard a guess that no other mod uses the M2X prefix in it's craft files, so I'm going to assume you have already installed the mod and don't realize it, or you improperly uninstalled it. 

Just removing the M2X folder from the gamedata should do it, then reinstall it.