I am unable to use a few of my cars and tracks in game and I get the above message. I tried to remove them but I'm unable to do so, as the option to uninstall or delete is grayed out. I tried copying the content back to my Packages folder to no avail. The content that is missing is all official, like the Vette Z06 and ZR1 and Honda NSX. I googled the error but didn't find a definite resolution. Any help is appreciated. Thanks
Do you have any vMOD installed, which points to these non-working components? If you do, uninstall vMOD first and try again. Another possibility is, that some of your game files are corrupted. If you have Steam version of rF2, use Steam client's "check game files integrity" function which will fix corrupted files for you.
Thanks for replying. No, I don't have any vMOD'S installed. Other than a few cars and tracks that I've downloaded, everything is pretty standard. I did check the files integrity in Steam and it came back clean.