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

We are having libxm2 version 2.6.16-12.9 and perl-5.8.5-57.We are getting following errors intermittently when calling a perl script through a C program. 

Can't locate object method "new" via package "XML::LibXML::SAX" at /us
+r/lib/perl5/vendor_perl/5.8.5/XML/SAX/ParserFactory.pm line 43.

Compilation failed in require at /app/base_lib/mycommon_mod1.pm line 8
+8.
BEGIN failed--compilation aborted at /app/base_lib/common_mod1.pm line
+ 88.
Compilation failed in require at /app/base_lib/cpath1/common_mod2.pm l
+ine 6.
BEGIN failed--compilation aborted at /app/base_lib/cpath1/common_mod2.
+pm line 6.
..
Compilation failed in require at /app/base_lib/cpath1/common_mod2.pm l
+ine 20.
BEGIN failed--compilation aborted at /app/base_lib//cpath1/common_mod2
+.pm line 20.
Compilation failed in require at /Apps/bin/my_script.pl line 18.
BEGIN failed--compilation aborted at /Apps/bin/my_script.pl line 18.

[download]

We are calling the perl script multiple times with the same parameter but sometimes we see this error. As a workaround for this problem, many of the links on web suggested altering  the order of modules SAX and ParserFactorey names in ParaserDetails.ini. We changed it and moved SAX before SAX::Parser, but still get an error although a different one - 

Can't locate object method "new" via package "XML::LibXML::SAX::Parser
+" at /usr/lib/perl5/vendor_perl/5.8.5/XML/SAX/ParserFactory.pm line 4
+3.
Compilation failed in require at /app/base_lib/mycommon_mod1.pm line 8
+8.
BEGIN failed--compilation aborted at /app/base_lib/common_mod1.pm line
+ 88.
Compilation failed in require at /app/base_lib/cpath1/common_mod2.pm l
+ine 6.
BEGIN failed--compilation aborted at /app/base_lib/cpath1/common_mod2.
+pm line 6.

[download]

Our product is running on RHEL 4.7.  Along with libxm2 version 2.6.16-12.9 and perl-5.8.5-57.We we are having following perl-XML packages -

perl-XML-Encoding-1.01-26  perl-XML-Twig-3.13-6 perl-XML-NamespaceSupport-1.08-6 perl-XML-Dumper-0.71-2 perl-XML-Grove-0.46alpha-27  perl-XML-LibXML-Common-0.13-8.el4 perl-XML-Parser-2.34-5  perl-libxml-perl-0.07-30 perl-XML-SAX-0.12-7  perl-XML-LibXML-1.58-3.el4 perl-libxml-enno-1.02-31

is this is a known issue with perl ? Also if any of the higher versions resolve this ?

Replies are listed 'Best First'.
Re: Can't locate object method "new" via package "XML::LibXML::SAX"
by Khen1950fx (Canon) on Nov 30, 2012 at 17:48 UTC
    First things first---please post an example snippet of your code.
[reply]
Re: Can't locate object method "new" via package "XML::LibXML::SAX"
by Anonymous Monk on Dec 01, 2012 at 08:43 UTC

    is this is a known issue with perl ? Also if any of the higher versions resolve this ?

    Doesn't appear to be an issue with perl, you can tell by the way perl gives you a nice error message -- the problem is most likely with your code

[reply]
      code snnipet line number wise

      Contents of my_script.pl and modules are 

      Line# 1 ## Comments
..
     11## Comments
     12
     13 use strict;
     14
     15 use Getopt::Std; # Command line options processing
     16
     17 use lib "/app/base_lib/cpath1";
---->18 use mypkg1::common_mod2 qw(:all);

      [download]

      Contents of common_mod2.pm are 

      Line# 1 package mypkg1::common_mod2;
      2
      3 ################################################
    #commnets ..
..
     12 ################################################
     13
     14 use strict;
     15 use LWP::UserAgent;
     16 use HTTP::Request::Common;
     17 use XML::Simple;
     18
     19 use lib "/app/base_lib/cpath1";
---->20 use mypkg1::common_mod1 qw(:all);

      [download]

      Contents of common_mod1.pm are 

      Line# 1#comments
..
     82#comments
     83 # Listed here are the other packages 
     84 use Cwd qw(abs_path);    
     85 use File::Basename;      
     86 use Fcntl qw( :flock );  
     87 use lib "/app/base_lib/cpath1";
---->88 use MYLIBS qw( :all );
     89 use MYLogging;
     90 use Digest::SHA1 qw(sha1_hex);

      [download]

      Contents of MYLIBS.pm are 

      Line 1 #
..
     15 ##############################################################
+##########
        #####
     16 package MYLIBS;
     17
     18 use strict;
     19 use XML::Simple;
     20 use Data::Dumper;

      [download]
[reply]
[d/l]
[select]

        I have posted code snippet for the errors above, any thought what could be the reason for these errors?

        Could it be due to version incompatibility of packages perl(perl-5.8.5-57) , libxml2( package(2.6.16-12.9 ) or perl-xml ?

[reply]

Back to Seekers of Perl Wisdom