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Then, as root, I copied /usr/local/bin/gs to /usr/bin/gs and it works now! In LocalSettings.php I have the following lines for the extension: >>> require_once("extensions/Math/math.php"); >>> >>> $wgUseTeX = true; >>> $wgTexvc = "/extensions/Math/math/texvc.exe"; >> texvc was installed via following instructions here [1 < Please post your questions to our new community site Forums → MediaWiki → How do I install texvc? 3 post(s), 2 voice(s) 16 Aug, 2008 02:18 PM rogal 2 post(s) I couldn't find anything logged about a problem anywhere in the system, and there were no differences in PHP configuration that I could find. Source

prove an equation holds in series Are people of Nordic Nations "happier, healthier" with "a higher standard of living overall than Americans"? This may indicate a bug in the software. This is not fixed-up by MediaWiki's upgrade.php script. I have followed the above suggestions.

Mediawiki Math Extension

Remember that there are problems with IE and full-alpha transparency. It should be straightforward. This is not what the built-in LaTeX "" extension wants to see. For testing purposes, under Fedora selinux can be disabled interactively with the command: sudo /usr/sbin/setenforce 0 and re-enabled with the command: sudo /usr/sbin/setenforce 1 On some systems, for example Fedora Core

Are there any rules of thumb for the most comfortable seats on a long distance bus? Do they wish to personify BBC Worldwide? now what? If not, change the policies accordingly.

For more details, see: http://xylofaan.ulyssis.org/patch/mediawiki/math_safe_mode/ Using safe_mode the owner of the script should be the same as the owner of the files [1]. Latex which tells me I don't have a 'convert' -- everything else is present. Then just do the usual things: install ocaml and latex, cd /math, and make to build texvc. click resources Does anyone know what that blue thing is?

share|improve this answer answered Aug 21 '09 at 9:57 Jitse Niesen 2,7211117 Where is the TeX log located on a typical Linux server? –Paradius Aug 25 '09 at 15:58 What is a non-vulgar synonym for this swear word meaning "an enormous amount"? This is the most difficult and painful part of the installation of MediaWiki. Would more Full Nodes help scaling and transaction speed?

Latex

Remember that page renderings are aggressively cached; run your tests in a preview and try varying texts. So, perhaps, the setting of absolute path, that causes the error message Failed to parse (PNG conversion failed; check for correct installation of latex, dvips, gs, and convert) is closer to Mediawiki Math Extension Format For Printing -XML -Clone This Bug -Top of page Home | New | Browse | Search | [?] | Reports | Help | NewAccount | Log In [x] | Forgot please help mexaero regardsmy platform:linux centos 5.2php 5apach 2mysql 5mediawiki 1.15line 10~24 in render.ml:Code: [Select all][Expand/Collapse][Download] (untitled.tex) Open in Overleaf10 exception ExternalCommandFailure of string 11 12 let render tmppath finalpath outtex

You can assign proper utf8 settings to it with the mysql statement alter table math CONVERT TO CHARACTER SET utf8 COLLATE utf8_general_ci; Identify the error[edit] Grep the error string in your Change the line to let cmd_convert tmpprefix finalpath = "convert -quality 100 -density 120 " ^ tmpprefix ^ ".ps " ^ finalpath ^ " >/dev/null 2>/tmp/wiki_convert_error" and run make. I have a texvc.exe file in the directory extensions/Math/math/ created via following these instructions. In this way, the latex and dvips executables know their own directory and will search the immediate parents for the relevent teTeX configuration files.

Following the example above, we see if( !file_exists( "$wgMathDirectory/{$this->hash}.png" ) ) { return $this->_error( 'math_image_error' ); } Ah-hah. A cause of this is that texvc cannot see a latex.fmt file. Verified similar results on English WikiPedia. http://ermcenter.com/failed-to/failed-to-initialize-glx-extension-compatible-nvidia.html You may need to restart Apache.

Yet another possible solution: if the webserver running MediaWiki uses SElinux for enhanced security (RedHat/Fedora systems do that by default), then it may happen that the SElinux context of a file If you are getting the error message "Error: Failed to parse (Missing texvc executable)" or the same error for texvcheck, it may be because these files don't have the necessary selinux This stuff is called extensions.

Assume that all the directories required have the mode access 777, and the only problem is that MediaWiki cannot find the support for the conversion of formulas to the images.

In MediaWiki 1.17 and earlier, enables the use of (TeX) tags. It seems that when upgrading older wikis up through various MySQL versions, somehow "latin1_swedish_ci" ends up getting stuffed on collation order fields at the database, table, and column levels. If, after the assignment of variable $wgUseTeX value true, the diagnostics suggests to revise the latex, dvips, gs and convert, this can be done in the following way. Lord knows what's going on here but it seems to do the business.

LaTeX Error: File `cancel.sty' not found[edit] If you see PNG conversion errors in your wiki, check the log files in images/tmp for any LaTeX errors, such as the one above. TeX Live seems to require the existence of a writable directory /var/www/.texlive2007/texmf-var/web2c to work properly. Try running that command yourself! Check This Out Without them, and without the relevant environment variables, these executables may be unable to find their configuration, and you will get a relatively generic error.

Just needed to make the directory calls accurate. Are the math formulas correct latex? To use all-or-nothing transparency with dvipng >= 1.6, use '-bg transparent' (all lowercase). I'm pretty sure it just hasn't been built on the hhvm servers that were reinstalled scap-recompilegerritbot added a comment.Sep 25 2014, 12:01 AMComment ActionsChange 162795 had a related patch set uploaded

strace or equivalent utility may be useful for tracing command executions. Therefore, if you do not have any other ams-math functions within the math tags, then it will not be rendered. Be sure to enable execute rights ("x") in the editor, otherwise AppArmor will block the execution of texvc. MySQL error 1267: Illegal mix of collocations[edit] After restoring or transferring a MySQL database: An error message is displayed: A database query syntax error has occurred.

let cmd_convert tmpprefix finalpath = "cd /tmp; convert -quality 100 -density 120 " ^ tmpprefix ^ ".ps " ^ finalpath ^ " >/dev/null 2>/dev/null" -- I have been pulling my hair The description of this set-up can be found at Extension:WikiTex. The parser assumes that the function is part of the normal TeX distribution, whereas it is actually a part of ams-math. starting with c:\).

let cmd_latex tmpprefix = "/home/wiki/local/teTeX/bin/x86-unknown-linux-gnu/latex ... Windows[edit] (todo) SQL Errors[edit] First, in your LocalSettings.php, set $wgShowSQLErrors = true; to see the problematic query in clear text temporarily. If the absolute path of the texvc is changed to the relative with command $wgTexvc = '/math/texvc' then the error message changes to Failed to parse (Missing texvc executable; please see I have a texvc.exe file in > the directory extensions/Math/math/ created via following these > instructions.

In LocalSettings.php I have the following lines for the extension: > require_once("extensions/Math/math.php"); > > $wgUseTeX = true; > $wgTexvc = "/extensions/Math/math/texvc.exe"; texvc was installed via following instructions here [1 ]. If that is not installed, latex will not render a dvi from the generated tex files and consequently no png can be rendered. Please see math/README to configure.): ...and this README file just seems to contain instructions for building texvc.