[Catalyst] Hi, First time using Catalyst and get an install error

Jeremiah Foster jeremiah at jeremiahfoster.com
Wed Sep 23 11:31:40 GMT 2009

On Sep 23, 2009, at 13:00, David Silva wrote:

> Thank you guys, it seems that i didn't had installed GCC, and now  =

> there is another error after i run the comand :
> # catalyst.pl Myapp
> Can't locate Class/MOP.pm in @INC

It appears to me that the catalyst script cannot find the Class::MOP  =

module in your perl module path, known as @INC. Since @INC is a  =

regular perl array, you can search through it to see the locations of  =

where your perl modules are stored:

perl -e 'print map { $_ . "\n" } @INC'

Which on my system produces:


Here's a perl script that prints out the versions of modules you have  =

installed on your system, this might be useful for finding Class::MOP;


use ExtUtils::Installed;
my $instmod =3D ExtUtils::Installed->new();
foreach my $module ($instmod->modules()) {
     my $version =3D $instmod->version($module) || "???";
     print "$module -- $version\n";

Now you can double check to see if you have in fact installed  =

Class::MOP and if not, install it via cpan or your package management  =

tool. You may also consider following Octavian's good advice from a  =

previous email to this thread.

Note that if you install modules with the cpan tool, it installs perl  =

modules in a pre-determined location (you can change this of course),  =

but that location is not the same location that your package  =

management system or Vendor may choose to install modules. That is why  =

it is important you mention which OS you are on and if you are  =

installing modules using cpan, cpanplus or apt-get for example. At  =

this point I will make a quick plug for debian since there are a few  =

of us in the debian perl group who are determined to make installing  =

catalyst on debian as painless as possible. Catalyst also provides  =

excellent documentation, including installing catalyst on debian.



> This is the module Class::MOP ? If it is it gives me another  =

> error ... (after alot of text)
> t/315_magic.t                           (Wstat: 512 Tests: 0 Failed:  =

> 0)
>   Non-zero exit status: 2
>   Parse errors: Bad plan.  You planned 9 tests but ran 0.
> t/500_deprecated.t                      (Wstat: 512 Tests: 0 Failed:  =

> 0)
>   Non-zero exit status: 2
>   Parse errors: Bad plan.  You planned 6 tests but ran 0.
> Files=3D77, Tests=3D22,  6 wallclock secs ( 0.29 usr  0.16 sys +  5.26  =

> cusr  0.79 csys =3D  6.50 CPU)
> Result: FAIL
> Failed 74/77 test programs. 2/22 subtests failed.
> make: *** [test_dynamic] Error 2
>   DROLSKY/Class-MOP-0.93.tar.gz
>   /usr/bin/make test -- NOT OK
> //hint// to see the cpan-testers results for installing this module,  =

> try:
>   reports DROLSKY/Class-MOP-0.93.tar.gz
> Running make install
>   make test had returned bad status, won't install without force
> Thank you for your help once more!
> 2009/9/22 Octavian R=E2snita <orasnita at gmail.com>
> From: "Alejandro Imass" <alejandro.imass at gmail.com>
> Here is how I go about with a CPAN failed test:
> 1) Determine which module is producing the error. This is usually as
> easy as scrolling up a bit in your shell and look for the latest lines
> that read "Going to build XXX".
> 2) Exit the CPAN shell and go to the build directory, which would be
> ~/.cpan/build/module-XXXX . You have to be careful that XXXX is the
> actual version you are trying to install. If unsure delete all
> versions of the module there (rm -Rf ~/.cpan/build/module*) and re-try
> with CPAN shell. If you are probably runing CPAN as root, that would
> be /root/.cpan/build/module-XXXX.
> 3) Inside the directory of the module, just run make and make test and
> try to see exactly what's going on. Usually is a failed dependency
> like Tom said, but sometimes it may be things like your locale or many
> other things. If unsure, just copy the ouput from that single module's
> output here and many will surely help.
> Best,
> Alejandro Imass
> If you want to go into the directory where the module ModuleName was  =

> built, you don't need to exit the CPAN shell, but just use:
> cpan> look ModuleName
> It will open a sub-shell.
> There you can use perl Makefile.PL, make, make test, prove -l t
> Then you can go back to the cpan shell by using exit command.

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