Installer Error : com.nokia.ndk.tools.harmattan.sysroot

[bahadirarslan]

Hello;
I want to install qt sdk 1.2.1. I got an error in installation process like this :

Error during installation process
(com.nokia.ndk.tools.harmattan.sysroot):
Execution failed(Unexpected exit code: 1):
"/home/bahadir/QtSDK/Madde/postinstall/harmattan-postinstall.sh"

so can you give me a solution for this error ?
thanks a lot.