Installation errors

I have several DLCs i bought on steam and i've been trying to install them in the content store but they keep having an error saying steam didn't provide something that was required, does anyone else have this issue or know of a remedy?

Its a bug that was introduced when SP2 landed - happens for all versions of TRS19. You san safely ignore it as the DLC will more than likely be installed.

Cheers

hiawathamr is correct - they are actually intalling fine. I'll add: if you hit "cancel" the button will change to "uninstall"