This is really about Photoshop CS6 Beta but this error is generated whenever I tried to open a file from Bridge, either Bridge [12.1 or 13.0]. It was frustrating at first.
I tried to figure out why I was receiving this message. Originally, I had Photoshop CS5 on my system. Then, I upgraded to Photoshop CS5 Extended. Finally, I installed Photoshop CS6 Beta. After the last install, I decided to uninstall Photoshop CS5 which I no longer used. These are 64-bit programs but I doubt that makes a difference. Whenever I opened Bridge for Photoshop CS5 Extended or Photoshop CS6 Beta, the shown error would generate. After reviewing the error closely, I decided to try and look at file associations but not in Windows as I had no problems elsewhere. It must be in Bridge.
I went to Edit -> Preferences and found a File Type Associations section with every file type it uses. Sure enough, by clicking on the triangle to the right of the file type, it showed only Photoshop. By clicking on Browse and going to the Photoshop CS6 Beta folder, I was able to change a couple of the ones I use exclusively and clicked OK. Afterwards, no problems. To change each and every one of those is going to require some time on my part.
This brings up an important question regarding upgrades. I think most of us upgrade before uninstalling the old version. Here are my questions:
1. Why did not the Bridge associated with the extended version change the file associations to the appropriate version of CS5 when it was installed?
2. Why did not the Bridge associated with Photoshop CS6 Beta change the file associations to this version when installed?
At the very least, it should be an option but I think it should actually point to the new version. Is this a bug in the Bridge software? I know Bridge is used for other Adobe applications but this definitely seems to be a bug when the only application iis Photoshop. I have Lightroom 4 also installed but this application does not use Bridge. Can this be corrected?