After update RW7 i'll get a warning, if RW7 starts

First popups the dialog with the message “your RW6 add ons are being copied to RW7” and then popups the
warning “fr_CA.lproj” couldn’t be copied to “Resources” because an item with the same name already exists.
To save the file, either provide a different name, or move aside or delete the existing file, and try again.”

i cannot find the file “fr_CA.lproj”.
Any ideas