Checking if your kit is complete... Looks good Writing Makefile for Exception::Like Microsoft (R) Program Maintenance Utility Version 7.10.3077 Copyright (C) Microsoft Corporation. All rights reserved. cp LikeTest.pm blib\lib\Exception\LikeTest.pm cp Like.pm blib\lib\Exception\Like.pm AutoSplitting blib\lib\Exception\Like.pm (blib\lib\auto\Exception\Like) 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 "-Iblib\lib" "-Iblib\arch" test.pl 1..10 ok 1 - use Exception::LikeTest; ok 2 - The object isa Exception::LikeTest ok 3 - Return value ok 4 - MyException ok 5 - errnos not ok 6 - dump_err # Failed test 'dump_err' # at test.pl line 20. # Structures begin differing at: # $got->[0]{caller_stack}[0][1] = 'blib\lib/Exception/LikeTest.pm' # $expected->[0]{caller_stack}[0][1] = 'blib/lib/Exception/LikeTest.pm' ok 7 - errno ok 8 - errstr ok 9 - errstrs ok 10 - clear_err # Looks like you failed 1 test of 10. NMAKE : fatal error U1077: 'C:\cpanrun\build\5-10-0\bin\perl.exe' : return code '0x1' Stop.