missing sequence presets or codec

I cannot open saved projects! Instead, when I open a saved Premiere Pro project I get the error message: “This project contained a sequence that could not be opened. No sequence preview preset file or codec could be associated with this sequence type.”

 

I am running Premiere CS6 on a MacBook Pro 10.7.4. I am not subscribed to creative cloud. I do not have any previous versions of Premiere installed (ie. CS5, CS5.5).

 

This message seems to be a pretty common problem among CS6 users. Here is a recent thread for creative cloud users experiencing this error message: http://forums.adobe.com/message/4496308 Like others, I am unable to open old projects, but I can still start new projects. However, when creating a new project, my  sequence settings seem to be missing  presets:Pr sequence presets.jpg

 

any ideas?

via Adobe Community : Popular Discussions – Adobe Premiere Forums http://forums.adobe.com/thread/1024174