osx yosemite - Perl Update in OS X 10.10.5, Cannot Locate Perl Modules -

update: tried again , realized perl said when tried load module, got "permission denied" error. so, re-ran script using sudo...and worked. guess must sort of permissions changes.

original:

updated os x 10.10.5 , suddenly, perl can no longer locate of cpan-installed modules. newly installed modules not found. know update installed perl 5.18.2, when explicitly use 5.16, modules still cannot located.

the output of perl -v here:

 summary of perl5 (revision 5 version 18 subversion 2) configuration:    platform:     osname=darwin, osvers=14.0, archname=darwin-thread-multi-2level     uname='darwin osx228.apple.com 14.0 darwin kernel version 14.0.0: tue jun 2 11:49:04 pdt 2015; root:xnu-2782.1.97.1.3~1development_x86_64 x86_64 '     config_args='-ds -e -dprefix=/usr -dccflags=-g  -pipe  -dldflags= -dman3ext=3pm -duseithreads -duseshrplib -dinc_version_list=none -dcc=cc'     hint=recommended, useposix=true, d_sigaction=define     useithreads=define, usemultiplicity=define     useperlio=define, d_sfio=undef, uselargefiles=define, usesocks=undef     use64bitint=define, use64bitall=define, uselongdouble=undef     usemymalloc=n, bincompat5005=undef   compiler:     cc='cc', ccflags ='-arch i386 -arch x86_64 -g -pipe -fno-common -dperl_darwin -fno-strict-aliasing -fstack-protector',     optimize='-os',     cppflags='-g -pipe -fno-common -dperl_darwin -fno-strict-aliasing -fstack-protector'     ccversion='', gccversion='4.2.1 compatible apple llvm 6.0 (clang-600.0.39)', gccosandvers=''     intsize=4, longsize=8, ptrsize=8, doublesize=8, byteorder=12345678     d_longlong=define, longlongsize=8, d_longdbl=define, longdblsize=16     ivtype='long', ivsize=8, nvtype='double', nvsize=8, off_t='off_t', lseeksize=8     alignbytes=8, prototype=define   linker , libraries:     ld='cc -mmacosx-version-min=10.10.5', ldflags ='-arch i386 -arch x86_64 -fstack-protector'     libpth=/usr/lib /usr/local/lib     libs=      perllibs=     libc=, so=dylib, useshrplib=true, libperl=libperl.dylib     gnulibc_version=''   dynamic linking:     dlsrc=dl_dlopen.xs, dlext=bundle, d_dlsymun=undef, ccdlflags=' '     cccdlflags=' ', lddlflags='-arch i386 -arch x86_64 -bundle -undefined dynamic_lookup -fstack-protector'   characteristics of binary (from libperl):    compile-time options: has_times multiplicity perlio_layers                         perl_dont_create_gvsv                         perl_hash_func_one_at_a_time_hard                         perl_implicit_context perl_malloc_wrap                         perl_preserve_ivuv perl_sawampersand use_64_bit_all                         use_64_bit_int use_ithreads use_large_files                         use_locale use_locale_collate use_locale_ctype                         use_locale_numeric use_perlio use_perl_atof                         use_reentrant_api   locally applied patches:     /library/perl/updates/ comes before system perl directories     installprivlib , installarchlib points updates directory   built under darwin   compiled @ jul  9 2015 01:30:43   %env:     perl5lib="/users/jrg/perl5/lib/perl5:"     perl_local_lib_root=":/users/jrg/perl5"     perl_mb_opt="--install_base /users/jrg/perl5"     perl_mm_opt="install_base=/users/jrg/perl5"   @inc:     /users/jrg/perl5/lib/perl5/darwin-thread-multi-2level     /users/jrg/perl5/lib/perl5     /library/perl/5.18/darwin-thread-multi-2level     /library/perl/5.18     /network/library/perl/5.18/darwin-thread-multi-2level     /network/library/perl/5.18     /library/perl/updates/5.18.2/darwin-thread-multi-2level     /library/perl/updates/5.18.2     /system/library/perl/5.18/darwin-thread-multi-2level     /system/library/perl/5.18     /system/library/perl/extras/5.18/darwin-thread-multi-2level     /system/library/perl/extras/5.18     . 

any , suggestions appreciated!

locating them not going help. need reinstall them anyway. perl doesn't maintain binary api compatibility between version (though can safely upgrade newer release of same version).