Slc500 program must be compiled before it can be emulated

Trying to load emulator but getting message: ‘this slc500 program must be compiled before it can be emulated’ Could it be I am not noting I/O instruction bits correctly? I am only able to note instruction bits as O:1 etc. but getting error: ‘rung 0 ins 2: ERROR: Adress must be specified to the bit level!’ I expect to add bit level as I:0/1 but program only allows I:1