CPAN::Meta::Spec defines the license value must be an array reference. However current Build.PL uses simple scalar. This breaks generating META.* files which breaks tests with recent Module::Build 0.4205. https://bugzilla.redhat.com/show_bug.cgi?id=1083430 Signed-off-by: Petr Písař <ppisar(a)redhat.com&gt; --- Build.PL | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/Build.PL b/Build.PL index 55cee55..0ccace3 100644 --- a/Build.PL +++ b/Build.PL @@ -316,7 +316,7 @@ my $build = $class->new ( script_files => [ 'v2v/virt-v2v.pl', 'p2v/server/virt-p2v-server.pl' ], meta_add => { resources => { - license => "http://www.gnu.org/licenses/gpl.html", + license => [ "http://www.gnu.org/licenses/gpl.html" ], homepage => "http://people.redhat.com/mbooth/virt-v2v/", repository => "git://git.fedorahosted.org/virt-v2v.git", MailingList => "http://www.redhat.com/mailman/listinfo/libguestfs",