Mason error

error in file:   /var/lib/mason/obj/library/tree.html
 
line 30:  Can't use string ("") as a HASH ref while "strict refs" in use
context:  
... 
26: 
27: 
28: 
29:  <title>The Math Forum - Math Library - ');
30:  $_out->( $hr->{'med_list'} );
31:  $_out->('</title></head>
32:  <body bgcolor="#FFFFFF">
33: 
34:  ');
... 
component stack:   /library/tree.html
/library/dhandler
code stack:   /var/lib/mason/obj/library/tree.html:30
/usr/lib/perl5/site_perl/5.6.0/HTML/Mason/Commands.pm:66
/var/lib/mason/obj/library/tree.html:16
/usr/lib/perl5/site_perl/5.6.0/HTML/Mason/Commands.pm:70
/var/lib/mason/obj/library/dhandler:89

debug info:   Debug file is '/var/lib/mason/debug/anon/12'.

raw_error





























raw error:
 






























error while executing /library/tree.html:
Can't use string ("") as a HASH ref while "strict refs" in use at /var/lib/mason/obj/library/tree.html line 30.
HTML::Mason::Interp::__ANON__('Can\'t use string ("") as a HASH ref while "strict refs" in use ...') called at /var/lib/mason/obj/library/tree.html line 30
HTML::Mason::Commands::__ANON__('passed_args', 'HASH(0x8e1e06c)', 'tree', 'languages', 'branch', '') called at /usr/lib/perl5/site_perl/5.6.0/HTML/Mason/Component.pm line 131
HTML::Mason::Component::run('HTML::Mason::Component::FileBased=HASH(0x8e3efe4)', 'passed_args', 'HASH(0x8e1e06c)', 'tree', 'languages', 'branch', '') called at /usr/lib/perl5/site_perl/5.6.0/HTML/Mason/Request.pm line 277
HTML::Mason::Request::cache_self('HTML::Mason::Request::ApacheHandler=HASH(0x8e00264)', 'key', 'languages') called at /usr/lib/perl5/site_perl/5.6.0/HTML/Mason/Commands.pm line 66
HTML::Mason::Commands::mc_cache_self('key', 'languages') called at /var/lib/mason/obj/library/tree.html line 16
HTML::Mason::Commands::__ANON__('passed_args', 'HASH(0x8e1e06c)', 'tree', 'languages', 'branch', '') called at /usr/lib/perl5/site_perl/5.6.0/HTML/Mason/Component.pm line 131
HTML::Mason::Component::run('HTML::Mason::Component::FileBased=HASH(0x8e3efe4)', 'passed_args', 'HASH(0x8e1e06c)', 'tree', 'languages', 'branch', '') called at /usr/lib/perl5/site_perl/5.6.0/HTML/Mason/Request.pm line 653
require 0 called at /usr/lib/perl5/site_perl/5.6.0/HTML/Mason/Request.pm line 653
HTML::Mason::Request::comp('HTML::Mason::Request::ApacheHandler=HASH(0x8e00264)', '/library/tree.html', 'passed_args', 'HASH(0x8e1e06c)', 'tree', 'languages', 'branch', '') called at /usr/lib/perl5/site_perl/5.6.0/HTML/Mason/Commands.pm line 70
HTML::Mason::Commands::mc_comp('/library/tree.html', 'passed_args', 'HASH(0x8e1e06c)', 'tree', 'languages', 'branch', '') called at /var/lib/mason/obj/library/dhandler line 89
HTML::Mason::Commands::__ANON__() called at /usr/lib/perl5/site_perl/5.6.0/HTML/Mason/Component.pm line 131
HTML::Mason::Component::run('HTML::Mason::Component::FileBased=HASH(0x8e22e78)') called at /usr/lib/perl5/site_perl/5.6.0/HTML/Mason/Request.pm line 653
require 0 called at /usr/lib/perl5/site_perl/5.6.0/HTML/Mason/Request.pm line 653
HTML::Mason::Request::comp('HTML::Mason::Request::ApacheHandler=HASH(0x8e00264)', 'HASH(0x8e1de50)', 'HTML::Mason::Component::FileBased=HASH(0x8e22e78)') called at /usr/lib/perl5/site_perl/5.6.0/HTML/Mason/Request.pm line 159
require 0 called at /usr/lib/perl5/site_perl/5.6.0/HTML/Mason/Request.pm line 159
HTML::Mason::Request::exec('HTML::Mason::Request::ApacheHandler=HASH(0x8e00264)', '/library/languages') called at /usr/lib/perl5/site_perl/5.6.0/HTML/Mason/ApacheHandler.pm line 914
HTML::Mason::ApacheHandler::handle_request_1('HTML::Mason::ApacheHandler=HASH(0x8de2bfc)', 'Apache=SCALAR(0x8e08fd0)', 'HTML::Mason::Request::ApacheHandler=HASH(0x8e00264)', 'HASH(0x8e1c31c)') called at /usr/lib/perl5/site_perl/5.6.0/HTML/Mason/ApacheHandler.pm line 560
require 0 called at /usr/lib/perl5/site_perl/5.6.0/HTML/Mason/ApacheHandler.pm line 560
HTML::Mason::ApacheHandler::handle_request('HTML::Mason::ApacheHandler=HASH(0x8de2bfc)', 'Apache=SCALAR(0x8e08fd0)') called at /etc/httpd/conf/handler.pl line 97
HTML::Mason::handler('Apache=SCALAR(0x8e08fd0)') called at /dev/null line 0
require 0 called at /dev/null line 0