title: Error while building project when executing build step 'Make'
body: <p>I've just installed Qt SDK 1.2.1 on my PC. I created a new project as a test:</p>
  
  <p><code>File &gt; New File or Project... &gt; Other Project &gt; Plain C++ Project</code></p>
  
  <p>I chose these build settings:</p>
  
  <p><img src="https://i.stack.imgur.com/PnV2V.png" alt="qt creator build settings"></p>
  
  <p>Qt Creator generated this .pro file:</p>
  
  <pre><code>TEMPLATE = app
  CONFIG += console
  CONFIG -= qt
  
  SOURCES += main.cpp
  </code></pre>
  
  <p>and this main.cpp file:</p>
  
  <pre><code>#include &lt;iostream&gt;
  
  using namespace std;
  
  int main()
  {
      cout &lt;&lt; "Hello World!" &lt;&lt; endl;
      return 0;
  }
  </code></pre>
  
  <p>The build fails:</p>
  
  <pre><code>13:39:35: Running build steps for project test...
  13:39:35: Starting: "C:\Dev\Qt\QtSDK\QtCreator\bin\jom.exe" clean
  Could Not Find C:\Dev\Projects\Qt\test\debug\main.obj
      del debug\main.obj
      del debug\test.intermediate.manifest debug\test.exp debug\test.ilk vc*.pdb vc*.idb
  Could Not Find C:\Dev\Projects\Qt\test\debug\test.intermediate.manifest
  Could Not Find C:\Dev\Projects\Qt\test\vc*.pdb
  Could Not Find C:\Dev\Projects\Qt\test\test.intermediate.manifest
  Could Not Find C:\Dev\Projects\Qt\test\test.exp
  Could Not Find C:\Dev\Projects\Qt\test\test.ilk
  Could Not Find C:\Dev\Projects\Qt\test\vc*.pdb
      c:\dev\qt\qtsdk\desktop\qt\4.8.1\msvc2008\bin\qmake.exe -spec ..\..\..\Qt\QtSDK\Desktop\Qt\4.8.1\msvc2008\mkspecs\win32-msvc2008 CONFIG+=declarative_debug -o Makefile test.pro
      C:\Dev\Qt\QtSDK\QtCreator\bin\jom.exe -f Makefile.Debug clean
      C:\Dev\Qt\QtSDK\QtCreator\bin\jom.exe -f Makefile.Release clean
  Could Not Find C:\Dev\Projects\Qt\test\release\main.obj
  Could Not Find C:\Dev\Projects\Qt\test\release\test.intermediate.manifest
      del release\main.obj
      del release\test.intermediate.manifest release\test.exp
      del ".\test.intermediate.manifest"
      del test.exp
      del test.ilk
      del vc*.pdb
      del vc*.idb
  Could Not Find C:\Dev\Projects\Qt\test\vc*.idb
  
  jom 1.0.8 - empower your cores
  
  13:39:36: The process "C:\Dev\Qt\QtSDK\QtCreator\bin\jom.exe" exited normally.
  13:39:36: Configuration unchanged, skipping qmake step.
  13:39:36: Starting: "C:\Dev\Qt\QtSDK\QtCreator\bin\jom.exe" 
      cl -c -nologo -Zm200 -Zc:wchar_t- -Zi -MDd -GR -EHsc -W3 -w34100 -w34189 -DUNICODE -DWIN32 -DQT_LARGEFILE_SUPPORT -I"..\..\..\Qt\QtSDK\Desktop\Qt\4.8.1\msvc2008\mkspecs\win32-msvc2008" -Fodebug\ @C:\DOCUME~1\Mitch!\LOCALS~1\Temp\main.obj.5936.16.jom
      C:\Dev\Qt\QtSDK\QtCreator\bin\jom.exe -f Makefile.Debug
  'cl' is not recognized as an internal or external command,
  operable program or batch file.
  jom: C:\Dev\Projects\Qt\test\Makefile.Debug [debug\main.obj] Error 1
  
  jom 1.0.8 - empower your cores
  
  jom: C:\Dev\Projects\Qt\test\Makefile [debug] Error 2
  13:39:36: The process "C:\Dev\Qt\QtSDK\QtCreator\bin\jom.exe" exited with code 2.
  Error while building project test (target: Desktop)
  When executing build step 'Make'
  </code></pre>
  
  <p>I've tried running the <code>Qt 4.8.1 for Desktop (MSVC 2008)</code> batch script before starting Qt Creator and checking the <code>Projects &gt; Build Settings &gt; Build Environment &gt; Using System Environment &gt; Clear System Environment</code> without success.</p>
  
  <p>My <code>PATH</code> variable after installing Qt SDK 1.2.1:</p>
  
  <pre><code>%SystemRoot%\system32;%SystemRoot%;%SystemRoot%\System32\Wbem;c:\Program Files\Microsoft SQL Server\90\Tools\binn\;C:\Program Files\QuickTime\QTSystem\;C:\Program Files\jEdit;C:\Program Files\TortoiseSVN\bin;C:\Program Files\doxygen\bin;C:\Program Files\NVIDIA Corporation\Cg\bin;C:\Program Files\Microsoft SQL Server\100\Tools\Binn\;C:\Program Files\Microsoft SQL Server\100\DTS\Binn\;C:\Program Files\Microsoft SQL Server\100\Tools\Binn\VSShell\Common7\IDE\;C:\Program Files\Microsoft Visual Studio 9.0\Common7\IDE\PrivateAssemblies\;C:\WINDOWS\system32\WindowsPowerShell\v1.0
  </code></pre>
  
  <p>My computer is running Windows XP Professional (Service Pack 2). The version of Qt Creator that ships with Qt SDK 1.2.1 is 2.4.1.</p>