Module::Build - could not create MYMETA files

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

Hi there,

I'm making my way through the new edition of Intermediate Perl and arrived at a point where I could benefit from your insight. When using module-starter to create a module with ExtUtils::Makemaker, it works just fine. However, when using Module::Build, I get a warning that MYMETA files could not be created. Module::Build version is 0.4003, Module::Starter version is 1.60, and I have tried this on a Mac OSX Lion with Perl5.12, and on a RHEL5 with Perl5.16. Below is the code and output.

many thanks

$ module-starter --mb --module=Animal --author="name" --email=email --
+verbose
Created Animal
Created Animal/lib
Created Animal/lib/Animal.pm
Created Animal/t
Created Animal/t/pod-coverage.t
Created Animal/t/pod.t
Created Animal/t/manifest.t
Created Animal/t/boilerplate.t
Created Animal/t/00-load.t
Created Animal/ignore.txt
Created Animal/Build.PL
Created Animal/Changes
Created Animal/README
Added to MANIFEST: Build.PL
Added to MANIFEST: Changes
Added to MANIFEST: ignore.txt
Added to MANIFEST: lib/Animal.pm
Added to MANIFEST: MANIFEST
Added to MANIFEST: README
Added to MANIFEST: t/00-load.t
Added to MANIFEST: t/boilerplate.t
Added to MANIFEST: t/manifest.t
Added to MANIFEST: t/pod-coverage.t
Added to MANIFEST: t/pod.t
Created Animal/MANIFEST
Created starter directories and files
$ cd Animal/
$ perl Build.PL 
Could not get valid metadata. Error is: Invalid metadata structure. Er
+rors: License 'Artistic_2_0' is invalid (license) [Validation: 1.4]
 at /usr/local/lib/perl5/site_perl/5.16.0/Module/Build/Base.pm line 45
+71.

Could not create MYMETA files
Creating new 'Build' script for 'Animal' version '0.01'
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Comment on Module::Build - could not create MYMETA files Select or Download Code

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Re: Module::Build - could not create MYMETA files by tobyink (Canon) on Dec 03, 2012 at 14:40 UTC
Does your Build.PL contain a license of "Artistic_2_0"? If so, it should probably be "artistic_2" as per CPAN::Meta::Spec. `perl -E'sub Monkey::do{say$_,for@_,do{($monkey=[caller(0)]->[3])=~s{::}{ }and$monkey}}"Monkey say"->Monkey::do'`	[reply]
Re^2: Module::Build - could not create MYMETA files by abualiga (Scribe) on Dec 03, 2012 at 14:47 UTC
It does contain "license => 'Artistic_2_0'", but I'm not understanding your second sentence. I have CPAN::Meta::Spec 2.120630, is there something I need to modify?	[reply]
Re^3: Module::Build - could not create MYMETA files by Anonymous Monk on Dec 03, 2012 at 14:49 UTC
You recognize Build.PL contains "Artistic_2_0", hooray, now replace that with "artistic_2" -- it should probably be means replace :)	[reply]
Re^4: Module::Build - could not create MYMETA files by abualiga (Scribe) on Dec 03, 2012 at 14:55 UTC
Re^5: Module::Build - could not create MYMETA files by Anonymous Monk on Dec 03, 2012 at 15:22 UTC
Re: Module::Build - could not create MYMETA files by Anonymous Monk on Dec 03, 2012 at 14:45 UTC
Ignore it :) Install Software::License report bug upstream (should mention to install Software::License when unrecognized license )	[reply]
Re^2: Module::Build - could not create MYMETA files by Anonymous Monk on Oct 27, 2014 at 11:05 UTC
that seems to fix the problem (installing Software::License) -- which, btw seems the sane thing to do instead of modifying the same thing over and over, and i just had deja vu about this comment... did i do this already?	[reply]

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