Last modified: 2014-01-21 12:55:05 UTC

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Bug 25756 - [RDF] "Cannot redeclare class arc2"
[RDF] "Cannot redeclare class arc2"
Status: NEW
Product: MediaWiki extensions
Classification: Unclassified
Other (Other open bugs)
All All
: Lowest normal (vote)
: ---
Assigned To: Nobody - You can work on this!
Depends on:
  Show dependency treegraph
Reported: 2010-11-02 20:41 UTC by moove
Modified: 2014-01-21 12:55 UTC (History)
3 users (show)

See Also:
Web browser: ---
Mobile Platform: ---
Assignee Huggle Beta Tester: ---


Description moove 2010-11-02 20:41:27 UTC

I just tried to install your RDFIO SMW-Extension according to but ran into problems. 
After adding ARC2 to the library of the SMW extension, the following error is thrown when I try to access the wiki:
"Fatal error: Cannot redeclare class arc2 in C:\[...]\mediawiki\extensions\SemanticMediaWiki\libs\arc\ARC2.php on line 17".

I am using SMW+ 1.5.1 (=windows, xampp), which already comes with quite some extensions installed. The following (installed) extensions already seem to use ARC (as they have an arc-folder in their library folder):
- HaloACL
- DataImport
- LinkedData
- SMWHalo

My suggestion: Maybe RDFIO should check whether ARC is already "loaded" before loading it itself. I guess the above mentionned extensions have kind of such a behavior (otherwise I an't explain why this error didn't occur earlier)...

I look forward to hearing from you and being able to use the RDFIO-Extension, which sounds very nice!

Kind regards from Switzerland,
Comment 1 Jeroen De Dauw 2011-07-29 15:30:19 UTC
I think you better contact the Ontoprise people for this, or at least point them here.
Comment 2 Samuel Lampa 2011-07-29 16:22:07 UTC
I realize that there is the ARCLibrary extension, which is actually what ontoprise uses, but which is available open source on sourceforge, so I thought I'd make RDFIO depend on that instead of loading arc itself. 

(Plan to look at it during the weekend).
Comment 3 Samuel Lampa 2011-07-29 16:22:26 UTC
Oh, and the link:
Comment 4 Andre Klapper 2013-01-09 13:20:17 UTC
This report has been in ASSIGNED status for more than one year and you are set as its assignee. In case that you are not actively working on a fix, please reset the bug status to NEW/UNCONFIRMED.
In case you do not plan to work on a fix in the near future: Please also edit the "Assigned To" field by clicking "Reset Assignee to default", in order to not prevent potential contributors from working on a fix. Thanks for your help!

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