[Qt-creator] No valid Qt version set. Set one in Tools/Options?

[Ed Sutton]

When logged on as non-root, I get a QtCreator build error that I do not know how to resolve:

"No valid Qt version set. Set one in Tools/Options"

I assume this is directing to change the setting /Tools/Options/Qt4/Qt Versions/

Qt4 apparently installs be default to /opt/qtsdk-2009.01.  Do I point it to a file or directory under here?  Sorry, I'm a Linux/Qt newbie and cannot figure this out.  What do I set it to?

Thanks in advance for any tips or direction,

-Ed