LSMW Errors

Hello, I am creating LSMW program to transfer Data from 'Tab delimited' Text file. I am transferring 'Purchase info Records', TCODE 'ME11' and SAP standard oblect 0060.

While creating, I have reached to step 'Specify Files'. Where I specified above mentioned 'Tab Delimited' file. While saving, I am getting an error 'No logical path has been specified'

Can anyone help me on this error?