Errors when imports .xml file that exported from inventor

I am using tool simmechanics Version R2012b for win7 OS 64bit. I drew a 3D assembly drawing in Inventor 2012 SP1 and exported to second generation simmechanics, but when implimenting to export from inventor I received a warning as "no valid solid bodies to output to STL file". but the exporting process was still run.

But when using command "smimport()" the error occured in MATLAB command window: » smimport('BRACE.xml') Error using smimport_implementation (line 38) "BRACE.xml" could not be found.

Error in smimport (line 51) hModel = smimport_implementation(xmlFile, varargin{:})_;_

or when I run command "smimport('BRACE.xml')" in Matlab command window i received the warning:

>> smimport('BRACE.xml') Caught "std::exception" Exception message is: bad lexical cast: source type value could not be interpreted as target

so, what is the problem here?

[Mohamed Ahmed Fathy]

Did you find a solution, please?