Problem after installing Qt SDK 1.1 (Solved)

Hello,

I've just installed the Qt SDK 1.1 (Linux 32bits version) and everything works fine, except that I cannot build my older projects that I made using the previous versions of Qt/qmake. When I am going to build a project, it says:

error: The Qt version is invalid: No qmake path set.
error: The qmake command "" was not found or is not executable.

But in the tools->options->Qt4 tab I have set manually all the qmake versions I have (4.6.2 - 4.7.0 - 4.7.2 and the new 4.7.3)
How can I fix this and recompile all my projects again without rewriting all.

Thanks for your help.

You can go the the Projects tab (from the left of Creator) and select the Qt version there or i guess you can manually delete all generated files (so that Creator wont import settings from them)

It worked!!!!

Thanks!!! You saved my life!!!!

:D