empyExample broken, can't find ofMain.h?

I was having some troubles trying to get a library to work. Further and further, trying to include this and that. Double checking everything is there.

Eventually, I get to the point where I just put the example empty app into myApps folder and compile it.

|3|error: ofMain.h: No such file or directory|  

Yet, a couple of other apps that I made off of the same empty template, work fine and find ofMain.h just fine.

I have no idea what I did to CodeBlocks (windows). What is happening? What happened to the default project?