I try to debug some project and when I hit "Debug", I get in console following message:
Qt Code: 
  1. Qt Makefile Generator - QMake Error: 
  2. /qmake -recursive eROSystem.pro 
  3. (Exec error:Launching failed)
To copy to clipboard, switch view to plain text mode 

After that, debugging is possible, I just want to know how to solve this error message.

I use Windows XP, Qt 4.3.2, MinGw and Eclipse 3.3.1.1.