Cannot find key signature. Maybe the client is packed. Packed client is not supported. This is what i always get when i try to open mbot for isro. I looked for help everywhere for about 5 hours. Some says its packed client. Okay yes i know its packed client. Anothers talk very difficul i cant understand that. Maybe someone who has experience on this problem can help me? Like tell me what to do step by step in easy talk? Would be very thankful.