error MSB6006: "cmd.exe" exited with code 3.

Hi, I’m using a VS project which depends on Qt but when building the project this error is still appearing “ error MSB6006: “cmd.exe” exited with code 3. I’ve posted a question on msdn forums here http://social.msdn.microsoft.com/Forums/en-US/msbuild/thread/f56772d5-637d-449b-ac29-64135b12a05a but they told me to post a question here as its related to qt build. The log file will be found in the same link. I’ve also checked this two questions: http://social.msdn.microsoft.com/Forums/en-US/msbuild/thread/22da875d-c86c-41ac-9076-9b4ed37114bf/ and http://social.msdn.microsoft.com/Forums/en-US/msbuild/thread/5b0be7be-1b6e-44c2-91ca-b5a9a55a2c41/ but couldn’t find an answer so if anyone could please help me as this is fairly important and urgent for me? Many Thanks in advance for your kind assistance