Autocad to Solidworks imput translation error message.

Hi,

     I have been sent a Autocad DWG file which contains a 2D Scheumatic. When I try to open it in Solidworks a error box occurs containing the message "Invalid or Incomplete DXF/DWG imput file. Unable to continue import translation".

    Could you please advise how this can be overcome??

     Thank you in advance.

     Regards,

               Mark.

SolidworksImport export