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I need to show mathematical terms in mediawiki-1.26.2 so I tried to install SimpleMathJax on mediawiki. I followed the described in extension page:

I downloaded SimpleMathJax-master.zip then extract, rename it to SimpleMathJax and move it to extensions directory of mediawiki. I added these lines to LocalSettings.php:

# End of automatically generated settings.
# Add more configuration options below.
require_once "$IP/extensions/SimpleMathJax/SimpleMathJax.php";
$wgSimpleMathJaxSize = 120;

But when I want to browse to the Wiki, I get this error:

wiki is currently unable to handle this request.

Also I tried to replace require_once "$IP/extensions/SimpleMathJax/SimpleMathJax.php"; line with wfLoadExtension( 'SimpleMathJax' ); but problem remains.

  • That extension doesn't have a extension.json file, so you'll have to use the require_once method of enabling it. (Not that this helps with figuring out your problem.) – Sam Wilson Oct 23 '16 at 2:10
  • @SamWilson It seems you say that I should not replace require_once ... with wfLoadExtension... . But how I can solve this problem? – hasanghaforian Oct 23 '16 at 2:39
  • That's correct. And to solve your problem, you need to figure out what the actual error is. So make sure you've got all error output turned on; see mediawiki.org/wiki/Manual:How_to_debug for more details. – Sam Wilson Oct 23 '16 at 5:28
  • @SamWilson I read that article and will tell you the result. – hasanghaforian Oct 23 '16 at 6:16
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See the debugging manual on how to find out what your error is.

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