Cannot determine perl version info from lib/JSON/Syck.pm Cannot determine license info from lib/JSON/Syck.pm Checking if your kit is complete... Looks good Writing Makefile for JSON::Syck Microsoft (R) Program Maintenance Utility Version 6.00.8168.0 Copyright (C) Microsoft Corp 1988-1998. All rights reserved. cp lib/JSON/Syck.pm blib\lib\JSON\Syck.pm cl -c -I. -nologo -GF -W3 -MD -Zi -DNDEBUG -O1 -DWIN32 -D_CONSOLE -DNO_STRICT -DHAVE_DES_FCRYPT -DUSE_SITECUSTOMIZE -DPRIVLIB_LAST_IN_INC -DPERL_IMPLICIT_CONTEXT -DPERL_IMPLICIT_SYS -DUSE_PERLIO -DPERL_MSVCRT_READFIX -MD -Zi -DNDEBUG -O1 -DVERSION=\"0.07\" -DXS_VERSION=\"0.07\" "-IC:\cpanrun\build\5-10-0\lib\CORE" bytecode.c bytecode.c syck.h(26) : fatal error C1083: Cannot open include file: 'strings.h': No such file or directory NMAKE : fatal error U1077: 'cl' : return code '0x2' Stop.