I've had occasionally recurring problems with cpan installs. OS X 10.4.9, base install of Perl from the OS. As an example, sudo cpan install CPAN I get (among other things, 
Signature invalid for distribution file. Please investigate.

Distribution id = A/AN/ANDK/CPAN-1.9102.tar.gz
    CPAN_USERID  ANDK (Andreas J. Koenig <andreas.koenig@anima.de>)
    CALLED_FOR   CPAN
    CHECKSUM_STATUS OK
    CONTAINSMODS CPAN CPAN::Admin CPAN::Debug CPAN::FirstTime CPAN::Ha
+ndleConfig CPAN::Kwalify CPAN::Nox CPAN::Queue CPAN::Tarzip CPAN::Ver
+sion
    SIG_STATUS   OK
    UPLOAD_DATE  2007-05-08
    archived     tar
    build_dir    /Users/dhosek/.cpan/build/CPAN-1.9102
    incommandcolor 1
    localfile    /Users/dhosek/.cpan/sources/authors/id/A/AN/ANDK/CPAN
+-1.9102.tar.gz
    unwrapped    YES

I'd recommend removing
/Users/dhosek/.cpan/sources/authors/id/A/AN/ANDK/CPAN-1.9102.tar.gz. I
+ts
signature
is invalid. Maybe you have configured your 'urllist' with
a bad URL. Please check this array with 'o conf urllist', and
retry. For more information, try opening a subshell with
  look ANDK/CPAN-1.9102.tar.gz
and there run
  cpansign -v

[download]
Any thoughts on what's going wrong and how to fix it?

In reply to CPAN install weirdness by dhosek

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