mistake in Qt Creator

I established Qt Creator 2.4.1 (Qt 4.7.4). At an assembly stage there is a mistake.
jom 1.0.6 – empower your cores

“cl” isn’t internal or external
the team executed by the program or the package file.
command failed with exit code 1
“cl” isn’t internal or external
the team executed by the program or the package file.
command failed with exit code 1
“cl” isn’t internal or external
the team executed by the program or the package file.
command failed with exit code 1
command failed with exit code 2
19:47:44: Process of “C:\QtSDK\QtCreator\bin\jom.exe” came to the end with a code 2.
There was a mistake at keepintouch project assembly (the purpose: Desktop)
During assembly performance at the stage “Assembly”

Help me.