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Bug 12671 - YAML::Syck Installed but check is failing due to ambiguity surrounding indirect object syntax
: YAML::Syck Installed but check is failing due to ambiguity surrounding indire...
Status: RESOLVED FIXED
Product: Logitech Media Server
Classification: Unclassified
Component: RPM
: 7.4.0
: All Other
: -- major (vote)
: Investigating
Assigned To: Andy Grundman
:
Depends on:
Blocks:
  Show dependency tree / graph
 
Reported: 2009-07-03 10:20 UTC by Bret
Modified: 2011-03-16 04:34 UTC (History)
1 user (show)

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Description Bret 2009-07-03 10:20:32 UTC 
Hello - YAML::Syck and other YAML modules installed but check is failing. 

I think the key to the problem is;

http://markmail.org/message/cy34bwib4eweitiv#query:%22Can%27t%20locate%20object%20method%20install%20via%20package%20YAML%3A%3ASyck%20at%20-e%20line%201.%22+page:1+mid:cy34bwib4eweitiv+state:results

Quoting from the page;

""
Ron Savage wrote:
Because of this curiosity:

ron@zoe:~/perl.modules$ perl -MCPAN -e 'install YAML'
Can't locate object method "install" via package "YAML" at -e line 1.
ron@zoe:~/perl.modules$ perl -MCPAN -e 'install YAML::Syck'
Can't locate object method "install" via package "YAML::Syck" at -e line
1.
ron@zoe:~/perl.modules$ perl -MCPAN -e 'install CPAN::Mini'
CPAN: File::HomeDir loaded ok (v0.66)
...etc...

it's not clear to me how to optionally install YAML and YAML::Syck after
asking the user if they want to. Or are these modules designed
deliberately to disallow that?

You're running into the ambiguity surrounding indirect object syntax, has 
nothing to do with CPAN.pm.

$ perl -wle 'foo Bar'
Can't locate object method "foo" via package "Bar" (perhaps you forgot to load 
"Bar"?) at -e line 1.

Perl thinks you're saying Bar->foo().  Use a + to disambiguate:

$ perl -MCPAN -e 'install +YAML'
CPAN: File::HomeDir loaded ok (v0.69)
...

Or use the cpan script:

$ cpan YAML
CPAN: File::HomeDir loaded ok (v0.69)
""

Going to see a 7.4 nightly start on my OpenSolaris mediaserver soon!
Comment 1 Bret 2009-07-03 10:22:40 UTC 
root@fugly:/usr/local/squeezecenter-7.4-27400# ./slimserver.pl
The following modules failed to load: YAML::Syck

To download and compile them, please run: /usr/local/squeezecenter-7.4-27400/Bin/build-perl-modules.pl YAML::Syck

Exiting..
Comment 2 Software Localization Team 2009-07-06 00:16:37 UTC 
Michael, this bug seems to not be a L10n, can you check?
Comment 3 Michael Herger 2009-07-06 00:29:43 UTC 
Bret - please add some information about your system.
Comment 4 James Richardson 2009-07-07 12:39:17 UTC 
Setting proper component and assigned
Comment 5 Andy Grundman 2009-07-13 09:44:26 UTC 
It's not clear if this is a problem with your CPAN installation, or SC?  Need more info.
Comment 6 Bret 2009-07-14 11:43:29 UTC 
Hello;

With squeezecenter-7.4-27526-noCPAN;

OpenSolaris - v5.10.0 built for i86pc-solaris
Perl and all modules built with;
[slimsrv@fugly] $ cc -Version
cc: Sun C 5.10 SunOS_i386 2009/06/03
usage: cc [ options] files.  Use 'cc -flags' for details

[slimsrv@fugly] $ ./slimserver.pl
The following modules failed to load: YAML::Syck

To download and compile them, please run: /usr/local/squeezecenter-7.4-27526-noCPAN/Bin/build-perl-modules.pl YAML::Syck

Exiting..


====

But YAML::Syck is up to date (1.07). 

root@fugly:/usr/local/squeezecenter-7.4-27526-noCPAN/prefs# perl -MCPAN -e shell

cpan shell -- CPAN exploration and modules installation (v1.9402)
Enter 'h' for help.

                                                                                                                                                cpan[1]> install YAML::Syck
CPAN: Storable loaded ok (v2.18)
Going to read '/root/.cpan/Metadata'
  Database was generated on Mon, 13 Jul 2009 04:28:11 GMT
CPAN: YAML loaded ok (v0.68)
Going to read 57 yaml files from /root/.cpan/build/
CPAN: Time::HiRes loaded ok (v1.9711)
...........................................DONE
Restored the state of none (in 0.5928 secs)
YAML::Syck is up to date (1.07).

                                                                                ==

So I try to comment it out of the bootstrap.pm 
my @default_required_modules = qw(version Time::HiRes DBI DBD::SQLite EV XML::Parser::Expat HTML::Parser JSON::XS Digest::SHA1 GD Sub::Name);
line.

But now get;

Use of inherited AUTOLOAD for non-method YAML::Syck::LoadYAML() is deprecated at /usr/local/squeezecenter-7.4-27526-noCPAN/CPAN/YAML/Syck.pm line 75, <FH> line 1.
Log4perl: Seems like no initialization happened. Forgot to call init()?
Use of inherited AUTOLOAD for non-method YAML::Syck::LoadYAML() is deprecated at /usr/local/squeezecenter-7.4-27526-noCPAN/CPAN/YAML/Syck.pm line 75, <FH> line 1.
[09-07-14 19:38:49.5878] main::init (319) Starting Squeezebox Server (v7.4, r27526, Tue Jul 14 04:04:33 PDT 2009) perl 5.010000
Use of uninitialized value in pattern match (m//) at /usr/local/squeezecenter-7.4-27526-noCPAN/Slim/Utils/Prefs.pm line 323.
[09-07-14 19:38:49.6010] Slim::Utils::Misc::msg (1160) Warning: [19:38:49.6009] Use of inherited AUTOLOAD for non-method YAML::Syck::LoadYAML() is deprecated at /usr/local/squeezecenter-7.4-27526-noCPAN/CPAN/YAML/Syck.pm line 75.
[09-07-14 19:38:49.6018] Carp::croak (44) Warning: Can't locate auto/YAML/Syck/LoadYAML.al in @INC (@INC contains: /usr/local/squeezecenter-7.4-27526-noCPAN/Cache/InstalledPlugins /usr/local/squeezecenter-7.4-27526-noCPAN/CPAN/arch/5.10/i86pc-solaris /usr/local/squeezecenter-7.4-27526-noCPAN/CPAN/arch/5.10/i86pc-solaris/auto /usr/local/squeezecenter-7.4-27526-noCPAN/CPAN/arch/5.10.0/i86pc-solaris /usr/local/squeezecenter-7.4-27526-noCPAN/CPAN/arch/5.10.0/i86pc-solaris/auto /usr/local/squeezecenter-7.4-27526-noCPAN/CPAN/arch/5.10/i86pc-solaris /usr/local/squeezecenter-7.4-27526-noCPAN/CPAN/arch/5.10/i86pc-solaris/auto /usr/local/squeezecenter-7.4-27526-noCPAN/CPAN/arch/i86pc-solaris /usr/local/squeezecenter-7.4-27526-noCPAN/lib /usr/local/squeezecenter-7.4-27526-noCPAN/CPAN /usr/local/squeezecenter-7.4-27526-noCPAN /usr/local/squeezecenter-7.4-27526-noCPAN /usr/local/lib/perl5/5.10.0/i86pc-solaris /usr/local/lib/perl5/5.10.0 /usr/local/lib/perl5/site_perl/5.10.0/i86pc-solaris /usr/local/lib/perl5/site_perl/5.10.0 .) at /usr/local/squeezecenter-7.4-27526-noCPAN/CPAN/YAML/Syck.pm line 75
[09-07-14 19:38:49.6022] Slim::Utils::Misc::msg (1160) Warning: [19:38:49.6022] Use of inherited AUTOLOAD for non-method YAML::Syck::DumpYAML() is deprecated at /usr/local/squeezecenter-7.4-27526-noCPAN/CPAN/YAML/Syck.pm line 65.
[09-07-14 19:38:49.6028] Slim::Utils::Prefs::Namespace::savenow (320) Error: can't save /usr/local/squeezecenter-7.4-27526-noCPAN/prefs/plugin/state.prefs: Can't locate auto/YAML/Syck/DumpYAML.al in @INC (@INC contains: /usr/local/squeezecenter-7.4-27526-noCPAN/Cache/InstalledPlugins /usr/local/squeezecenter-7.4-27526-noCPAN/CPAN/arch/5.10/i86pc-solaris /usr/local/squeezecenter-7.4-27526-noCPAN/CPAN/arch/5.10/i86pc-solaris/auto /usr/local/squeezecenter-7.4-27526-noCPAN/CPAN/arch/5.10.0/i86pc-solaris /usr/local/squeezecenter-7.4-27526-noCPAN/CPAN/arch/5.10.0/i86pc-solaris/auto /usr/local/squeezecenter-7.4-27526-noCPAN/CPAN/arch/5.10/i86pc-solaris /usr/local/squeezecenter-7.4-27526-noCPAN/CPAN/arch/5.10/i86pc-solaris/auto /usr/local/squeezecenter-7.4-27526-noCPAN/CPAN/arch/i86pc-solaris /usr/local/squeezecenter-7.4-27526-noCPAN/lib /usr/local/squeezecenter-7.4-27526-noCPAN/CPAN /usr/local/squeezecenter-7.4-27526-noCPAN /usr/local/squeezecenter-7.4-27526-noCPAN /usr/local/lib/perl5/5.10.0/i86pc-solaris /usr/local/lib/perl5/5.10.0 /usr/local/lib/perl5/site_perl/5.10.0/i86pc-solaris /usr/local/lib/perl5/site_perl/5.10.0 .) at /usr/local/squeezecenter-7.4-27526-noCPAN/CPAN/YAML/Syck.pm line 65
[09-07-14 19:38:49.6032] Slim::Utils::Misc::msg (1160) Warning: [19:38:49.6032] Use of inherited AUTOLOAD for non-method YAML::Syck::DumpYAML() is deprecated at /usr/local/squeezecenter-7.4-27526-noCPAN/CPAN/YAML/Syck.pm line 65.
[09-07-14 19:38:49.6038] Slim::Utils::Prefs::Namespace::savenow (320) Error: can't save /usr/local/squeezecenter-7.4-27526-noCPAN/prefs/server.prefs: Can't locate auto/YAML/Syck/DumpYAML.al in @INC (@INC contains: /usr/local/squeezecenter-7.4-27526-noCPAN/Cache/InstalledPlugins /usr/local/squeezecenter-7.4-27526-noCPAN/CPAN/arch/5.10/i86pc-solaris /usr/local/squeezecenter-7.4-27526-noCPAN/CPAN/arch/5.10/i86pc-solaris/auto /usr/local/squeezecenter-7.4-27526-noCPAN/CPAN/arch/5.10.0/i86pc-solaris /usr/local/squeezecenter-7.4-27526-noCPAN/CPAN/arch/5.10.0/i86pc-solaris/auto /usr/local/squeezecenter-7.4-27526-noCPAN/CPAN/arch/5.10/i86pc-solaris /usr/local/squeezecenter-7.4-27526-noCPAN/CPAN/arch/5.10/i86pc-solaris/auto /usr/local/squeezecenter-7.4-27526-noCPAN/CPAN/arch/i86pc-solaris /usr/local/squeezecenter-7.4-27526-noCPAN/lib /usr/local/squeezecenter-7.4-27526-noCPAN/CPAN /usr/local/squeezecenter-7.4-27526-noCPAN /usr/local/squeezecenter-7.4-27526-noCPAN /usr/local/lib/perl5/5.10.0/i86pc-solaris /usr/local/lib/perl5/5.10.0 /usr/local/lib/perl5/site_perl/5.10.0/i86pc-solaris /usr/local/lib/perl5/site_perl/5.10.0 .) at /usr/local/squeezecenter-7.4-27526-noCPAN/CPAN/YAML/Syck.pm line 65
Comment 7 Andy Grundman 2009-07-14 11:51:06 UTC 
Try deleting the CPAN/YAML directory.  If you install modules system-wide where the versions don't match, you have to delete the version we ship in our CPAN dir.
Comment 8 Bret 2009-07-15 03:40:58 UTC 
Thanks Andy, That fixed it. How come if I downloaded the NOCPAN nightly I hit this problem?
Comment 9 Andy Grundman 2009-07-15 06:08:27 UTC 
The NoCPAN build is a bit misleading as it still includes the CPAN dir, just not the arch dir.  We don't really want anyone running without the CPAN dir, as you'd likely have a ton of modules using different versions and it could cause strange bugs that are difficult to track down.

Probably the NoCPAN build should remove the Perl half of binary modules, though, to fix issues like this one.
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