I recently started a project using Xcode 3.2 and the vstsdk 2.4 and then I purchased Xcode 4. When I open the project within Xcode 4 I get the "missing base SDK" error which I can fix by changing that to either Mac OS X 10.5 or 10.6. After this though my .vst file is still red in the file tree. I have also tried to delete the file and re-add it but when I do it adds it as a folder instead of a .vst file. Without this I cannot build the project as the target is missing.
Any ideas?
Cheers.