Checking if your kit is complete... Looks good Writing Makefile for Bundle::Cobalt Microsoft (R) Program Maintenance Utility Version 7.10.3077 Copyright (C) Microsoft Corporation. All rights reserved. cp Cobalt.pm blib\lib\Bundle\Cobalt.pm Microsoft (R) Program Maintenance Utility Version 7.10.3077 Copyright (C) Microsoft Corporation. All rights reserved. C:\cpanrun\build\5-10-0\bin\perl.exe "-MExtUtils::Command::MM" "-e" "test_harness(1, 'blib\lib', 'blib\arch')" t/*.t t/01....Do not install this module! Please see the README file for instructions. at t/01.t line 1. dubious Test returned status 255 (wstat 65280, 0xff00) FAILED--1 test script could be run, alas--no output ever seen NMAKE : fatal error U1077: 'C:\cpanrun\build\5-10-0\bin\perl.exe' : return code '0xff' Stop.