XML::Simple Issues

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

I'm running in to some issues with the using the "XMLin" in my code writing. The code below

#!/usr/bin/perl
use XML::Simple;
my $opt = XMLin('foo.xml');
print $opt;
[download]

in the foo.xml there's just some random xml code but I created it for the site to cause the error I keep getting with other scripts I've got that use the XML::Simple commands. The error I get is

Undefined subroutine &main::XMLin called at first.pl line 3.

Now I've searched around for this error and found someone who have troubles with it on this site however the code

perl -we "use XML::Simple; print $INC{'XML/Simple.pm'}"

returns an error not a file. the error being
syntax error at -e line 1, at EOF
Execution of -e aborted due to compilation errors.

I've tried removing XML::simple, and reinstalling it, though CPAN and from the download link on the owners site using the make install. I've also tried to reinstall perl 5.10.0, I'm using a debian linux server. Please show me the error of my ways.

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Re: XML::Simple Issues by Corion (Patriarch) on Dec 29, 2010 at 18:43 UTC
Your program works for me, so I'm not sure what went wrong during your installation, deinstallation and reinstallation of XML::Simple. If you are using the system Perl (as indicated by your hashbang line of `/usr/bin/perl`), then I strongly advise you to use your OS package manager (`apt-get`, or `aptitude`) to install the Debian package of the Perl module instead of going via CPAN. Likely, the following will install the appropriate Debian package: `apt-get install libxml-simple-perl` [download]	[reply] [d/l] [select]
Re^2: XML::Simple Issues by tigerstorms (Initiate) on Dec 30, 2010 at 02:08 UTC
I tried to install `apt-get install libxml-simple-perl` after it installed i tried to run the code again. `perl -we use XML::Simple; print $INC{'XML/Simple.pm'}` and I get the error still below `syntax error at -e line 1, at EOF Execution of -e aborted due to compilation errors. Warning: unknown mime-type for "{XML/Simple.pm}" -- using "application +/octet-stream" Error: no such file "{XML/Simple.pm}"` [download]	[reply] [d/l] [select]
Re^3: XML::Simple Issues by Anonymous Monk on Dec 30, 2010 at 02:28 UTC
`$ perl -e use syntax error at -e line 1, at EOF Execution of -e aborted due to compilation errors.` [download] See perlrun Alternatively, make a file `$ cat junk87.pl use XML::Simple; print $INC{'XML/Simple.pm'} $ perl junk87.pl C:/perl/site/5.10.1/lib/XML/Simple.pm` [download]	[reply] [d/l] [select]
Re^4: XML::Simple Issues by tigerstorms (Initiate) on Dec 30, 2010 at 03:43 UTC
Re^5: XML::Simple Issues by Anonymous Monk on Dec 30, 2010 at 04:43 UTC
Some notes below your chosen depth have not been shown here
Re^4: XML::Simple Issues by tigerstorms (Initiate) on Dec 30, 2010 at 05:59 UTC
Re: XML::Simple Issues by codeacrobat (Chaplain) on Dec 29, 2010 at 21:47 UTC
In *nix environments use single quotes to enclose the one-liner. `perl -MXML::Simple -le 'print for %INC'` [download] `print+qq(\L@{[ref\&@]}@{['@'x7^'!#2/"!4']});`	[reply] [d/l] [select]
Re: XML::Simple Issues by isotope (Deacon) on Dec 29, 2010 at 19:44 UTC
In your diagnostic one-liner, your double-quotes leave $INC to be shell-interpreted. Escape it: `perl -we "use XML::Simple; print \$INC{'XML/Simple.pm'}"` --isotope	[reply] [d/l]
Re^2: XML::Simple Issues by Jenda (Abbot) on Dec 29, 2010 at 21:39 UTC
Depends on the OS. Under Windows it would be all right without the backslashes. Jenda Enoch was right! Enjoy the last years of Rome.	[reply]
Re^3: XML::Simple Issues by isotope (Deacon) on Dec 30, 2010 at 17:58 UTC
That's fine, but the error he received is because on the Linux system he's using, he does need to escape the $. --isotope	[reply]
Re^2: XML::Simple Issues by tigerstorms (Initiate) on Dec 29, 2010 at 22:30 UTC
I removed the double quotes and I get syntax error at -e line 1, at EOF Execution of -e aborted due to compilation errors. Warning: unknown mime-type for "{XML/Simple.pm}" -- using "application/octet-stream" Error: no such file "{XML/Simple.pm}"	[reply]
Re^3: XML::Simple Issues by isotope (Deacon) on Dec 30, 2010 at 18:03 UTC
Not to get further bogged down in this issue that's really secondary to your question, but you still need quotes; you just didn't go quite far enough and asked the shell to interpret $ENV instead of passing it to perl. codeacrobat's one-liner is better anyway. --isotope	[reply]