Checking if your kit is complete... Looks good Writing Makefile for perlbench Microsoft (R) Program Maintenance Utility Version 7.10.3077 Copyright (C) Microsoft Corporation. All rights reserved. Math::BigInt: couldn't load specified math lib(s), fallback to Math::BigInt::FastCalc at C:/cpanrun/build/5-10-0/site/lib/Win32API/File.pm line 20 cp lib/PerlBench/Results.pm blib\lib\PerlBench\Results.pm cp benchlib.pl blib\lib\benchlib.pl cp lib/PerlBench.pm blib\lib\PerlBench.pm cp lib/PerlBench/Stats.pm blib\lib\PerlBench\Stats.pm C:\cpanrun\build\5-10-0\bin\perl.exe -MExtUtils::Command -e cp perlbench-timeit blib\script\perlbench-timeit pl2bat.bat blib\script\perlbench-timeit 'pl2bat.bat' is not recognized as an internal or external command, operable program or batch file. NMAKE : fatal error U1077: 'pl2bat.bat' : return code '0x1' Stop.