I think I tried everything on my Win7 64 machine but still got this error.
- Run installer (Qt_SDK_Win_offline_v1_2_en.exe) as administrator in compatibility mode on XP SP2.
- Include the directory containing nmake and cl into system path
- reinstall it about 10 times without success.
I verified that the installer worked fine with a Win32 machine.
What else can I try to make this installed without an error?
UPDATE: I just gave up the SDK and downloaded library only. It worked without any problem.
The problem might be how you defined the environment variable.
If you notice the path in the error message, it contains double slashes before the bin directory:
harmattan_10.2011.34-1\\binand this is a problem on Windows.You also can’t have both
\and/defining a path. Use\only.