There were two issues encountered. Originally the MIB file had been transferred in binary mode, so the file contained ^M characters. After the MIB file was transfered in ascii mode the error message was still received. It appeared that HP Openview was not reading the last line of the file.
Transfer the MIB file to the host in ascii mode since the MIB file is a text file.
Add a carriage return after the last line of the MIB file so that the last line is read by HP Openview.