Dynaloader not loading LibXML

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

Replies are listed 'Best First'.
Re: Dynaloader not loading LibXML by stevieb (Canon) on Apr 25, 2016 at 14:03 UTC
Welcome to the Monastery, domglennon! Does the first answer here on SO help? It states that something may still be missing from your PATH. Could you post your path (`echo %PATH%`), and check to see where any `"libxml*"` files may reside in your `c:/strawberry` directory structure?	[reply] [d/l] [select]
Re^2: Dynaloader not loading LibXML by domglennon (Novice) on Apr 25, 2016 at 14:20 UTC
hi Stevieb, thank you for the kind welcome! I should have said I'd seen that issue on SO and done everything recommended there. Here's my path (relevant folders only): `C:\strawberry\perl\bin\;C:\Strawberry\c\bin;C:\Strawberry\perl\site\bin;` And I've added the system variable perl5lib, which has the value: `C:/Strawberry/perl/vendor/lib;C:/Strawberry/perl/vendor/lib/auto;C:/Strawberry/perl/site/lib;C:/Strawberry/perl/lib;` I also created an issue of my own at SO: http://stackoverflow.com/questions/36793878/cant-run-xmllibxml-on-strawberry-perl-invalid-path-in-dynaloader-pm# - as the advice given in the other issue didn't fix it.	[reply] [d/l] [select]
Re^3: Dynaloader not loading LibXML by syphilis (Archbishop) on Apr 26, 2016 at 11:07 UTC
And I've added the system variable perl5lib Why ? (I think this might be your problem). Try removing it - I can't see how it can possibly be doing anything useful. Cheers, Rob	[reply]
Re^4: Dynaloader not loading LibXML by domglennon (Novice) on Apr 27, 2016 at 14:27 UTC
Re^3: Dynaloader not loading LibXML by domglennon (Novice) on Apr 25, 2016 at 14:23 UTC
And here's a listing of all files/folders containing LibXML under the Strawberry folder: Name Size Type + Modified Attr Location LibXML File Folder + Friday 17:36 ----- C:\Straw...\vendor\lib\auto\XML libxml File Folder + Friday 17:35 ----- C:\Strawberry\c\include LibXML File Folder + Friday 17:35 ----- C:\Strawberry\...\vendor\lib\XML libxml2 File Folder + Friday 17:36 ----- C:\Strawberry\licenses .packlist 2.22 KB File + Friday 17:36 -a--- C:\Strawberry\...\auto\XML\L... .packlist 2.22 KB File + Friday 17:36 -a--- C:\Strawberry\...\auto\XML\L... .packlist 2.22 KB File + Friday 17:36 -a--- C:\Strawberry\...\auto\XML\L... _INFO_ 109 bytes File + 26/01/2015 18:04 -a--- C:\Strawberry\licenses\libxml2 AUTHORS 208 bytes File + 30/07/2009 17:24 -a--- C:\Strawberry\licenses\libxml2 COPYING 1.25 KB File + 03/10/2014 11:00 -a--- C:\Strawberry\licenses\libxml2 LibXML.pm 64.4 KB PM File + 27/02/2016 12:17 -a--- C:\Strawberry\...\vendor\lib\XML LibXML.pod 14.7 KB POD File + 27/02/2016 12:18 -a--- C:\Strawberry\...\vendor\lib\XML libxml-2.0.pc 305 bytes PC File + 26/01/2015 18:03 -a--- C:\Strawberry\c\lib\pkgconfig LibXML.xs.dll 342 KB Application extension + 06/03/2016 23:30 -a--- C:\Strawberry\...\auto\XML\L... LibXML.xs.dll 342 KB Application extension + 06/03/2016 23:30 -a--- C:\Strawberry\...\auto\XML\L... LibXML.xs.dll 342 KB Application extension + 06/03/2016 23:30 -a--- C:\Strawberry\...\auto\XML\L... LibXML.xs.dll 342 KB Application extension + 06/03/2016 23:30 -a--- C:\Strawberry\...\auto\XML\L... libxml2.a 1.02 MB A File + 26/01/2015 18:03 -a--- C:\Strawberry\c\lib libxml2-2__.dll 1.20 MB Application extension + 26/01/2015 18:03 -a--- C:\Strawberry\c\bin [download]	[reply] [d/l]
Re: Dynaloader not loading LibXML by syphilis (Archbishop) on Apr 26, 2016 at 10:55 UTC
I've installed it using the Strawberry cpan client, it installs fine ... Do you mean that all of the tests passed ? (Surely not.) One would expect that all tests would have failed with the exact same error as you've reported, and that you would have had to use force to effect the installation of XML::LibXML. Otherwise you've invented some (hitherto unknown) way of breaking a perl installation. I take it that the error can be produced by running simply: `perl -MXML::LibXML -e 1` [download] Cheers, Rob	[reply] [d/l]
Re^2: Dynaloader not loading LibXML by domglennon (Novice) on Apr 26, 2016 at 11:49 UTC
OK, here's an odd thing: it does run from the C drive, but I get the error message when I try to run it from a network drive. Same for any scripts using LibXML. Any ideas why this should be?	[reply]
Re^3: Dynaloader not loading LibXML by syphilis (Archbishop) on Apr 26, 2016 at 13:41 UTC
it does run from the C drive, but I get the error message when I try to run it from a network drive I've no experience with running from a network drive - which is probably the reason that I've never seen that "specified path is invalid .." error message before. Could it be that 'C:/Strawberry/perl/vendor/lib/auto/XML/LibXML/LibXML.xs.dll' is an invalid path specification (as the error message states) when running from a network drive ? Hopefully someone with better knowledge of running from a network drive can provide something a bit more definite. (An incorrect UPDATE removed.) One other (probably unrelated) thing to note is that your error message relates to the XML::LibXML that's installed in perl/vendor/lib. That's the XML::LibXML that shipped with Strawberry Perl - it's not the XML::LibXML that you installed. (The one you installed should be in perl/site/lib.) Normally, perl/site/lib comes before perl/vendor/lib in @INC, which means that in a normal situation the XML::LibXML in perl/site/lib is the one that would get loaded. But your perl5lib changed the @INC order, putting perl/vendor/lib ahead of perl/site/lib and thus ensuring that the XML::LibXML in perl/vendor/lib is the one that gets loaded. Cheers, Rob	[reply]
Re^4: Dynaloader not loading LibXML by domglennon (Novice) on Apr 26, 2016 at 16:16 UTC
Re^5: Dynaloader not loading LibXML by syphilis (Archbishop) on Apr 26, 2016 at 23:42 UTC
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Re: Dynaloader not loading LibXML by Anonymous Monk on Apr 25, 2016 at 21:57 UTC
As a debugging step you can run depends.exe /c /f:1 /pb /ot:temp.txt ... ...perl.exe ...	[reply]
Re^2: Dynaloader not loading LibXML by domglennon (Novice) on Apr 26, 2016 at 10:10 UTC
Thanks - the command line doesn't give any output (am I supposed to replace the ... with something? Apologies if I'm being stupid) , but I've run the GUI and pointed it to Perl. It's showing a number of DLLs that it can't find, mainly API-MS-WIN-.* , but also DCOMP.DLL, GPSVC.DLL and IESHIMS.DLL - is this a concern?	[reply]
Re^3: Dynaloader not loading LibXML by Anonymous Monk on Apr 27, 2016 at 06:17 UTC
Thanks - the command line doesn't give any output (am I supposed to replace the ... with something? Apologies if I'm being stupid) The output is in the .txt file, you're supposed to replace the ...perl.exe... parts with the program you run, if you run `perl.exe foo.pl` then the command you run is `depends.exe /c /f:1 /pb /ot:temp.txt perl.exe foo.pl` when in doubt use absolute/full paths (C:\perl\bin\perl.exe or whatever) depends.exe will tell you what .exe/.dll is loading what .exe/.dll and which one is failing and why if its not clear why/what then post the contents of temp.txt here inside code tags	[reply] [d/l] [select]
Re^4: Dynaloader not loading LibXML by domglennon (Novice) on Apr 27, 2016 at 12:53 UTC
Re^5: Dynaloader not loading LibXML by Anonymous Monk on Apr 28, 2016 at 22:21 UTC