cl isn't in your path. You require to include it there. The recommended method to do this is to launch a developer command prompt.
To open a Developer Command Prompt window
With the Windows 8 Start screen showing, type Visual Studio Tools. Look-out that the search results alter as you type; at the time Visual Studio Tools appears, select it.
On prior versions of Windows, select Start, and then in the search box, type Visual Studio Tools. At the time Visual Studio Tools seems in the search results, select it.
In the Visual Studio Tools folder, open the Developer Command Prompt for your version of Visual Studio. (To run as administrator, open the shortcut menu for the Developer Command Prompt and select Run as Administrator.)
As the article notes, there are various diverse shortcuts for setting up different toolsets - you require to pick the suitable one.
In case you meanwhile have a plain Command Prompt window open, you can run the batch file
vcvarsall.bat with the appropriate argument to set up the environment variables. Quoting the same article:
To run vcvarsall.bat
At the command prompt, alter to the Visual C++ installation directory. (The location relies on the system and the Visual Studio installation, however a typical location is C:\Program Files (x86)\Microsoft Visual Studio version\VC.) For instance, enter:
cd "\Program Files (x86)\Microsoft Visual Studio 12.0\VC"
To configure this Command Prompt window for 32-bit x86 command-line builds, at the command prompt, enter:
I had the similar problem. Attempt to create a bat-file to begin the Qt Creator. Include something like this to the bat-file:
call "C:\Program Files\Microsoft Visual Studio 9.0\VC\bin\vcvars32.bat"
Now I can compile and obtain:
jom 1.0.8 - empower your cores
11:10:08: The process "C:\QTsdk\qtcreator\bin\jom.exe" exited normally.