Unable to locate XML.SAX

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

I have 2 CGI scripts written in Perl that both use XML::Simple. There's nothing fancy in there. When I run one script it runs fine but if I run the other script it complains....

Can't locate XML/SAX.pm in @INC (@INC contains: C:/Perl64/site/bin C:/
+Perl64/bin C:/Perl64/lib ........) at C:/Perl64/lib/XML/Simple.pm lin
+e 369
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Both scripts are in the same directory, both use the same path to the same XML document, etc..,. Why would one fail yet the other doesn't?

our $xmlSimp = XML::Simple->new();
our $xmlCont = $xmlSimp->XMLin("/baseDir/subDir/core.xml");
[download]

Comment on Unable to locate XML.SAX Select or Download Code

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Re: Unable to locate XML.SAX by tangent (Parson) on Dec 04, 2014 at 15:47 UTC
The section "ENVIRONMENT" of the docs explain why this might happen. If you look at line 369 of XML::Simple it has: `eval { require XML::SAX; }; # We didn't need it until now if($@) { # No XML::SAX - fall back to XML::Par +ser if($preferred_parser) { # unless a SAX parser was expressly r +equested croak "XMLin() could not load XML::SAX"; }` [download] So it would seem that in the script that fails it is defining what parser to use - have a look for the environment variable 'XML_SIMPLE_PREFERRED_PARSER' or the package variable $XML::Simple::PREFERRED_PARSER in the script.	[reply] [d/l]
Re: Unable to locate XML.SAX by karlgoethebier (Abbot) on Dec 04, 2014 at 15:01 UTC
"...There's nothing fancy in there..." But what's in there? I think there must be some difference. But without seeing what's in there, i can only guess. Regards, Karl ŤThe Crux of the Biscuit is the Apostropheť	[reply]
Re: Unable to locate XML.SAX by wazat (Monk) on Dec 04, 2014 at 16:02 UTC
Add a debug statement to print out the value of `@INC` for both scripts. Perhaps there is a runtime difference between the two scripts. Are the two scripts using the same perl? Where is XML/SAX.pm on your system? Are both scripts using the same parser? Perhaps one of the scripts is setting `$XML::Simple::PREFERRED_PARSER`	[reply] [d/l] [select]
Re: Unable to locate XML.SAX by GotToBTru (Prior) on Dec 04, 2014 at 15:15 UTC
Do they both call the same methods? 1 Peter 4:10	[reply]
Re: Unable to locate XML.SAX by karlgoethebier (Abbot) on Dec 04, 2014 at 18:53 UTC
I couldn't resist to summarize... But what's in there? (karlgoethebier) ...why this might happen... (tangent) Add a debug statement... (wazat) I'm curiuos about what caused your problem. Please see also Re: poll ideas quest 2014. Best regards, Karl ŤThe Crux of the Biscuit is the Apostropheť	[reply]