File "dump_proto.py", line 886, in <module>
    print item_proto()
  File "dump_proto.py", line 877, in item_proto
    item_proto_line = "%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\t%                                                                                       s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s\t%s" % (ro                                                                                       w[0], "\"" + row[1] + "\"", "\""  + get_item_type(row[3], row[0]) + "\"" , "\""                                                                                         + get_item_subtype(row[3], row[4], row[0]) + "\"", row[6] , get_antiflag(row[7]                                                                                       , row[0]), get_flag(row[8], row[0]), get_wearflag(row[9], row[0]), get_immunefla                                                                                       g(row[10]), row[11], row[12], row[13], row[14], row[16], get_limittype(row[17]),                                                                                        row[18], get_limittype(row[19]), row[20], get_apply(row[21]), row[22], get_appl                                                                                       y(row[23]), row[24], get_apply(row[25]), row[26], row[27], row[28], row[29], row                                                                                       [30], row[31], row[32], row[39], row[40], row[41])
TypeError: cannot concatenate 'str' and 'NoneType' objects