@MichaelA you still need to fix ur last else in ur code as others have stated.
you have it as:

ON *:TEXT:!desc *:#: { 
  if ($($+(%,info,$2),2)) { 
    msg $chan 2Description for $+($2,:) $ifmatch 
  } 
}
else { 
  msg $chan 2I have no description set for $2 $+ , if they would like to set one, type it in the room, starting with !setdesc
}

it needs to be:

ON *:TEXT:!desc *:#: { 
  if ($($+(%,info,$2),2)) { 
    msg $chan 2Description for $+($2,:) $ifmatch 
  } 
  else { 
    msg $chan 2I have no description set for $2 $+ , if they would like to set one, type it in the room, starting with !setdesc
  }
}

if not it wont say the message...

keep at it you will get it down...