markhunnibell has asked for the wisdom of the Perl Monks concerning the following question:

I am on Mac OS X Snow Leopard and recently used macports to install Perl 5.8.9 at /opt/local/bin/perl5 and am trying to install the Image::Magick module using CPAN. So I get the latest CPAN and and doing OK, but then it hangs with a dependency issue... needs Compress::Zlib. So I tried to install it directly and am consistently getting a "500" error with LWP but I cannot seem to figure out what I can do to get over the hump and no searches seem to provide comparable problems/solutions. Any help would be appreciated. 
cpan[2]> install Compress::Zlib
                                                                      
+                                                                     
+           
CPAN: Storable loaded ok (v2.19)
Going to read '/Users/markhunnibell/.cpan/Metadata'
  Database was generated on Fri, 25 Feb 2011 10:31:13 GMT
Running install for module 'Compress::Zlib'
Running make for P/PM/PMQS/IO-Compress-2.033.tar.gz
CPAN: Digest::SHA loaded ok (v5.50)
Checksum for /Users/markhunnibell/.cpan/sources/authors/id/P/PM/PMQS/I
+O-Compress-2.033.tar.gz ok
Scanning cache /Users/markhunnibell/.cpan/build for sizes
......................................................................
+......DONE
CPAN: Archive::Tar loaded ok (v1.52)
x IO-Compress-2.033/
<readmore>x IO-Compress-2.033/lib/
x IO-Compress-2.033/lib/File/
x IO-Compress-2.033/lib/File/GlobMapper.pm
x IO-Compress-2.033/lib/Compress/
x IO-Compress-2.033/lib/Compress/Zlib.pm
x IO-Compress-2.033/lib/IO/
x IO-Compress-2.033/lib/IO/Uncompress/
x IO-Compress-2.033/lib/IO/Uncompress/RawInflate.pm
x IO-Compress-2.033/lib/IO/Uncompress/Gunzip.pm
x IO-Compress-2.033/lib/IO/Uncompress/Unzip.pm
x IO-Compress-2.033/lib/IO/Uncompress/Base.pm
x IO-Compress-2.033/lib/IO/Uncompress/Inflate.pm
x IO-Compress-2.033/lib/IO/Uncompress/Bunzip2.pm
x IO-Compress-2.033/lib/IO/Uncompress/Adapter/
x IO-Compress-2.033/lib/IO/Uncompress/Adapter/Identity.pm
x IO-Compress-2.033/lib/IO/Uncompress/Adapter/Inflate.pm
x IO-Compress-2.033/lib/IO/Uncompress/Adapter/Bunzip2.pm
x IO-Compress-2.033/lib/IO/Uncompress/AnyInflate.pm
x IO-Compress-2.033/lib/IO/Uncompress/AnyUncompress.pm
x IO-Compress-2.033/lib/IO/Compress/
x IO-Compress-2.033/lib/IO/Compress/Base.pm
x IO-Compress-2.033/lib/IO/Compress/Zip.pm
x IO-Compress-2.033/lib/IO/Compress/Zip/
x IO-Compress-2.033/lib/IO/Compress/Zip/Constants.pm
x IO-Compress-2.033/lib/IO/Compress/Adapter/
x IO-Compress-2.033/lib/IO/Compress/Adapter/Identity.pm
x IO-Compress-2.033/lib/IO/Compress/Adapter/Deflate.pm
x IO-Compress-2.033/lib/IO/Compress/Adapter/Bzip2.pm
x IO-Compress-2.033/lib/IO/Compress/RawDeflate.pm
x IO-Compress-2.033/lib/IO/Compress/Deflate.pm
x IO-Compress-2.033/lib/IO/Compress/Gzip/
x IO-Compress-2.033/lib/IO/Compress/Gzip/Constants.pm
x IO-Compress-2.033/lib/IO/Compress/Bzip2.pm
x IO-Compress-2.033/lib/IO/Compress/Gzip.pm
x IO-Compress-2.033/lib/IO/Compress/Zlib/
x IO-Compress-2.033/lib/IO/Compress/Zlib/Constants.pm
x IO-Compress-2.033/lib/IO/Compress/Zlib/Extra.pm
x IO-Compress-2.033/lib/IO/Compress/Base/
x IO-Compress-2.033/lib/IO/Compress/Base/Common.pm
x IO-Compress-2.033/MANIFEST
x IO-Compress-2.033/private/
x IO-Compress-2.033/private/MakeUtil.pm
x IO-Compress-2.033/README
x IO-Compress-2.033/Changes
x IO-Compress-2.033/Makefile.PL
x IO-Compress-2.033/t/
x IO-Compress-2.033/t/101truncate-bzip2.t
x IO-Compress-2.033/t/010examples-bzip2.t
x IO-Compress-2.033/t/004gziphdr.t
x IO-Compress-2.033/t/110encode-gzip.t
x IO-Compress-2.033/t/100generic-gzip.t
x IO-Compress-2.033/t/110encode-deflate.t
x IO-Compress-2.033/t/106prime-deflate.t
x IO-Compress-2.033/t/102tied-zip.t
x IO-Compress-2.033/t/002any-transparent.t
x IO-Compress-2.033/t/108anyunc-zip.t
x IO-Compress-2.033/t/cz-06gzsetp.t
x IO-Compress-2.033/t/103newtied-gzip.t
x IO-Compress-2.033/t/105oneshot-bzip2.t
x IO-Compress-2.033/t/102tied-rawdeflate.t
x IO-Compress-2.033/t/107multi-deflate.t
x IO-Compress-2.033/t/101truncate-rawdeflate.t
x IO-Compress-2.033/t/109merge-deflate.t
x IO-Compress-2.033/t/cz-08encoding.t
x IO-Compress-2.033/t/101truncate-deflate.t
x IO-Compress-2.033/t/108anyunc-bzip2.t
x IO-Compress-2.033/t/106prime-rawdeflate.t
x IO-Compress-2.033/t/108anyunc-rawdeflate.t
x IO-Compress-2.033/t/109merge-rawdeflate.t
x IO-Compress-2.033/t/002any-zip.t
x IO-Compress-2.033/t/108anyunc-deflate.t
x IO-Compress-2.033/t/cz-01version.t
x IO-Compress-2.033/t/002any-gzip.t
x IO-Compress-2.033/t/105oneshot-gzip.t
x IO-Compress-2.033/t/103newtied-bzip2.t
x IO-Compress-2.033/t/050interop-gzip.t
x IO-Compress-2.033/t/100generic-deflate.t
x IO-Compress-2.033/t/002any-rawdeflate.t
x IO-Compress-2.033/t/006zip.t
x IO-Compress-2.033/t/110encode-bzip2.t
x IO-Compress-2.033/t/106prime-gzip.t
x IO-Compress-2.033/t/001zlib-generic-zip.t
x IO-Compress-2.033/t/010examples-zlib.t
x IO-Compress-2.033/t/103newtied-rawdeflate.t
x IO-Compress-2.033/t/001zlib-generic-deflate.t
x IO-Compress-2.033/t/109merge-gzip.t
x IO-Compress-2.033/t/110encode-rawdeflate.t
x IO-Compress-2.033/t/103newtied-zip.t
x IO-Compress-2.033/t/102tied-deflate.t
x IO-Compress-2.033/t/107multi-bzip2.t
x IO-Compress-2.033/t/107multi-rawdeflate.t
x IO-Compress-2.033/t/020isize.t
x IO-Compress-2.033/t/107multi-gzip.t
x IO-Compress-2.033/t/globmapper.t
x IO-Compress-2.033/t/100generic-bzip2.t
x IO-Compress-2.033/t/999pod.t
x IO-Compress-2.033/t/104destroy-zip.t
x IO-Compress-2.033/t/107multi-zip.t
x IO-Compress-2.033/t/102tied-bzip2.t
x IO-Compress-2.033/t/100generic-zip.t
x IO-Compress-2.033/t/Test/
x IO-Compress-2.033/t/Test/Builder.pm
x IO-Compress-2.033/t/Test/More.pm
x IO-Compress-2.033/t/Test/Simple.pm
x IO-Compress-2.033/t/105oneshot-gzip-only.t
x IO-Compress-2.033/t/108anyunc-transparent.t
x IO-Compress-2.033/t/000prereq.t
x IO-Compress-2.033/t/001zlib-generic-gzip.t
x IO-Compress-2.033/t/105oneshot-zip-only.t
x IO-Compress-2.033/t/104destroy-rawdeflate.t
x IO-Compress-2.033/t/100generic-rawdeflate.t
x IO-Compress-2.033/t/105oneshot-zip-bzip2-only.t
x IO-Compress-2.033/t/002any-deflate.t
x IO-Compress-2.033/t/compress/
x IO-Compress-2.033/t/compress/zlib-generic.pl
x IO-Compress-2.033/t/compress/merge.pl
x IO-Compress-2.033/t/compress/generic.pl
x IO-Compress-2.033/t/compress/newtied.pl
x IO-Compress-2.033/t/compress/tied.pl
x IO-Compress-2.033/t/compress/any.pl
x IO-Compress-2.033/t/compress/encode.pl
x IO-Compress-2.033/t/compress/CompTestUtils.pm
x IO-Compress-2.033/t/compress/multi.pl
x IO-Compress-2.033/t/compress/oneshot.pl
x IO-Compress-2.033/t/compress/destroy.pl
x IO-Compress-2.033/t/compress/truncate.pl
x IO-Compress-2.033/t/compress/prime.pl
x IO-Compress-2.033/t/compress/anyunc.pl
x IO-Compress-2.033/t/001bzip2.t
x IO-Compress-2.033/t/101truncate-gzip.t
x IO-Compress-2.033/t/104destroy-bzip2.t
x IO-Compress-2.033/t/101truncate-zip.t
x IO-Compress-2.033/t/104destroy-gzip.t
x IO-Compress-2.033/t/106prime-bzip2.t
x IO-Compress-2.033/t/103newtied-deflate.t
x IO-Compress-2.033/t/cz-14gzopen.t
x IO-Compress-2.033/t/01misc.t
x IO-Compress-2.033/t/005defhdr.t
x IO-Compress-2.033/t/105oneshot-deflate.t
x IO-Compress-2.033/t/105oneshot-rawdeflate.t
x IO-Compress-2.033/t/108anyunc-gzip.t
x IO-Compress-2.033/t/110encode-zip.t
x IO-Compress-2.033/t/109merge-zip.t
x IO-Compress-2.033/t/102tied-gzip.t
x IO-Compress-2.033/t/cz-05examples.t
x IO-Compress-2.033/t/105oneshot-zip.t
x IO-Compress-2.033/t/104destroy-deflate.t
x IO-Compress-2.033/t/001zlib-generic-rawdeflate.t
x IO-Compress-2.033/t/106prime-zip.t
x IO-Compress-2.033/t/cz-03zlib-v1.t
x IO-Compress-2.033/META.yml
x IO-Compress-2.033/pod/
x IO-Compress-2.033/pod/FAQ.pod
x IO-Compress-2.033/examples/
x IO-Compress-2.033/examples/io/
x IO-Compress-2.033/examples/io/bzip2/
x IO-Compress-2.033/examples/io/bzip2/bzgrep
x IO-Compress-2.033/examples/io/bzip2/bzcat
x IO-Compress-2.033/examples/io/bzip2/bzstream
x IO-Compress-2.033/examples/io/gzip/
x IO-Compress-2.033/examples/io/gzip/gzstream
x IO-Compress-2.033/examples/io/gzip/gzcat
x IO-Compress-2.033/examples/io/gzip/gzgrep
x IO-Compress-2.033/examples/io/gzip/gzappend
x IO-Compress-2.033/examples/io/anycat
x IO-Compress-2.033/examples/compress-zlib/
x IO-Compress-2.033/examples/compress-zlib/gzstream
x IO-Compress-2.033/examples/compress-zlib/filtinf
x IO-Compress-2.033/examples/compress-zlib/filtdef
x IO-Compress-2.033/examples/compress-zlib/gzcat
x IO-Compress-2.033/examples/compress-zlib/gzgrep</readmore>
CPAN: File::Temp loaded ok (v0.20)

  CPAN.pm: Going to build P/PM/PMQS/IO-Compress-2.033.tar.gz

Up/Downgrade not needed.
Checking if your kit is complete...
Looks good
Warning: prerequisite Compress::Raw::Bzip2 2.033 not found.
Warning: prerequisite Compress::Raw::Zlib 2.033 not found.
Writing Makefile for IO::Compress
---- Unsatisfied dependencies detected during ----
----       PMQS/IO-Compress-2.033.tar.gz      ----
    Compress::Raw::Bzip2 [requires]
    Compress::Raw::Zlib [requires]
Shall I follow them and prepend them to the queue
of modules we are processing right now? [yes] 
Running make test
  Delayed until after prerequisites
Running make install
  Delayed until after prerequisites
Running install for module 'Compress::Raw::Bzip2'
Running make for P/PM/PMQS/Compress-Raw-Bzip2-2.033.tar.gz
CPAN: LWP::UserAgent loaded ok (v5.829)
Fetching with LWP:
  ftp://carroll.cac.psu.edu/pub/CPAN/authors/id/P/PM/PMQS/Compress-Raw
+-Bzip2-2.033.tar.gz
LWP failed with code[500] message[Undefined subroutine &version::_VERS
+ION called at /opt/local/lib/perl5/5.8.9/Net/FTP.pm line 17.
BEGIN failed--compilation aborted at /opt/local/lib/perl5/5.8.9/Net/FT
+P.pm line 17.
Compilation failed in require at /opt/local/lib/perl5/site_perl/5.8.9/
+LWP/Protocol/ftp.pm line 21.
]
Fetching with Net::FTP:
  ftp://carroll.cac.psu.edu/pub/CPAN/authors/id/P/PM/PMQS/Compress-Raw
+-Bzip2-2.033.tar.gz
Catching error: "Can't locate object method \"new\" via package \"Net:
+:FTP\" at /opt/local/lib/perl5/5.8.9/CPAN/FTP.pm line 212.\cJ" at /op
+t/local/lib/perl5/5.8.9/CPAN.pm line 391
    CPAN::shell() called at -e line 1

[download]

Replies are listed 'Best First'.
Re: trouble with CPAN installing stuff: LWP 500 error
by ikegami (Patriarch) on Feb 26, 2011 at 00:46 UTC

    It immediately follows with why it returned a 500. 

    Undefined subroutine &version::_VERSION called at /opt/local/lib/perl5
+/5.8.9/Net/FTP.pm line 17.
BEGIN failed--compilation aborted at /opt/local/lib/perl5/5.8.9/Net/FT
+P.pm line 17.
Compilation failed in require at /opt/local/lib/perl5/site_perl/5.8.9/
+LWP/Protocol/ftp.pm line 21.

    [download]

    Try upgrading Net::FTP and version.

[reply]
[d/l]

      Thanks. Actually, I tried these types of obvious things, but it says that my Net::FTP is current:

      cpan [4]> install Net::FTP

Net::FTP is up to date (2.77).

      [download]

      I do not know what 'version' is, but I just tried to install that and got the same message... if the problem is that version is not current, a circular chicken-egg issue emerges...

      cpan [5]> install version

Running install for module 'version'
Running make for J/JP/JPEACOCK/version-0.88.tar.gz
Fetching with LWP:
  ftp://carroll.cac.psu.edu/pub/CPAN/authors/id/J/JP/JPEACOCK/version-
+0.88.tar.gz
LWP failed with code[500] message[Undefined subroutine &version::_VERS
+ION called at /opt/local/lib/perl5/5.8.9/Net/FTP.pm line 17.
BEGIN failed--compilation aborted at /opt/local/lib/perl5/5.8.9/Net/FT
+P.pm line 17.
Compilation failed in require at /opt/local/lib/perl5/site_perl/5.8.9/
+LWP/Protocol/ftp.pm line 21.
]
Fetching with Net::FTP:
  ftp://carroll.cac.psu.edu/pub/CPAN/authors/id/J/JP/JPEACOCK/version-
+0.88.tar.gz
Catching error: "Can't locate object method \"new\" via package \"Net:
+:FTP\" at /opt/local/lib/perl5/5.8.9/CPAN/FTP.pm line 212.\cJ" at /op
+t/local/lib/perl5/5.8.9/CPAN.pm line 391
    CPAN::shell() called at -e line 1

      [download]
[reply]
[d/l]
[select]
        Get http://search.cpan.org/CPAN/authors/id/J/JP/JPEACOCK/version-0.88.tar.gz and unzip it. Then run 
        perl Build.PL
./Build
./Build test
./Build install

        [download]
[reply]
[d/l]
[reply]

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