SCCM 2012 SP1 - The specified UNC path does not contain a valid wim file or you donot have permission to access it.Specify a valid path.

Hi all,
Recently i got this problem with SCCM installation :-
SCCM - SCCM 2012 SP1
The setup went fine but after the installation Boot images were not created.
So i thought of importing the boot image from WADK.When i tried to import any .wim file (boot image or OS) it Gave me this error :-

"The specified UNC path does not contain a valid wim file or you donot have permission to access it.Specify a valid path."

I checked & rechecked all the permissions & they were proper but still the same error.

Steps Taken :-
1. Reinstalled WADK.(Same issue remains)
2. Executed the command line mentioned here (http://blogs.msdn.com/b/steverac/archive/2009/06/26/unable-to-import-wim-into-sccm-console.aspx) - Same Issue Remains.

The installation log file shows these errors :-