I can't compile any program in QtCreator on Lubuntu 13.04. I have this error:
Qt Code: 
  1. QtCreator needs a compiler set up to build. Configure a compiler in the kit options
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First of all, I installed from Synaptic gcc-mingw32 and mingw32 with dependencies, so the list of downloading packages files looked like this:
Qt Code: 
  1. binutils (version 2.23.2-2ubuntu1) will be installed
  2. binutils-mingw-w64-i686 (version 2.22.90.20120919-0ubuntu1+2) will be installed
  3. binutils-mingw-w64-x86-64 (version 2.22.90.20120919-0ubuntu1+2) will be installed
  4. cpp-4.6 (version 4.6.4-1ubuntu1) will be installed
  5. g++-4.6 (version 4.6.4-1ubuntu1) will be installed
  6. g++-mingw-w64-i686 (version 4.6.3-13ubuntu1+8) will be installed
  7. g++-mingw-w64-x86-64 (version 4.6.3-13ubuntu1+8) will be installed
  8. gcc-4.6 (version 4.6.4-1ubuntu1) will be installed
  9. gcc-4.6-base (version 4.6.4-1ubuntu1) will be installed
  10. gcc-mingw-w64-base (version 4.6.3-13ubuntu1+8) will be installed
  11. gcc-mingw-w64-i686 (version 4.6.3-13ubuntu1+8) will be installed
  12. gcc-mingw-w64-x86-64 (version 4.6.3-13ubuntu1+8) will be installed
  13. gfortran-mingw-w64-i686 (version 4.6.3-13ubuntu1+8) will be installed
  14. gfortran-mingw-w64-x86-64 (version 4.6.3-13ubuntu1+8) will be installed
  15. libc-dev-bin (version 2.17-0ubuntu5) will be installed
  16. libc6-dev (version 2.17-0ubuntu5) will be installed
  17. libstdc++6-4.6-dev (version 4.6.4-1ubuntu1) will be installed
  18. linux-libc-dev (version 3.8.0-27.40) will be installed
  19. manpages-dev (version 3.44-0ubuntu1) will be installed
  20. mingw-w64-i686-dev (version 2.0.3-1) will be installed
  21. mingw-w64-x86-64-dev (version 2.0.3-1) will be installed
  22. mingw32 (version 4.2.1.dfsg-2ubuntu1) will be installed
  23. mingw32-binutils (version 2.20-0.2) will be installed
  24. mingw32-runtime (version 3.15.2-0ubuntu1) will be installed
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Then I downloaded newest Qt 5.1.0 for Linux 32-bit from qt-project.org/downloads and I installed it without any problems. In installation options I had checked "gcc".

Then, I created new project. In Kit Selection I had default checked "Desktop Qt 5.1.0 GCC 32bit". I wrote some code, tried to compile it, and I have mentioned error about compiler. I thought QtCreator will detect gcc (or mingw).

In Options window, section "Build & Run", tab Compilers I have nothing. So I added new compiler GCC and set following file:
Qt Code: 
  1. /home/rafal/Qt5.1.0/5.1.0/gcc/bin/qmake
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But I have no idea if is this the right file. I set ABI to: x86, linux, generic, elf, 32 bit, but also I'm not sure about it. Then, in "Kits" tab I added new one, and this one has GCC compiler. I set this kit to default. I go back to the code, I try to compile it once again, and then I have this error:
Qt Code: 
  1. 18:03:16: Running steps for project TestApp...
  2. 18:03:16: Configuration unchanged, skipping qmake step.
  3. 18:03:16: Could not start process "make" 
  4. Error while building/deploying project TestApp (kit: Desktop Qt 5.1.0 GCC 32bit)
  5. When executing step 'Make'
  6. 18:03:16: Elapsed time: 00:00.
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I also installed g++, and I get the same.

And I don't know what to do.

Can someone help me, please? What am I doing wrong?