SID-00009: Can't configure DirectedGraphPlugin

Status:	Answered	TWiki version:	4.1.2	Perl version:	5.8.8
Category:	DirectedGraphPlugin	Server OS:	Debian Etch Linux, kernel 2.6.24	Last update:	16 years ago

I'm trying to install and configure the DirectedGraphPlugin; I have GraphViz and ImageMagick installed. After installation, I try to display the InstalledPlugins page and I get:

"Path to GraphViz commands not defined. Use bin/configure or edit DirectedGraphPlugin.pm at /var/www/twiki/lib/TWiki/Plugins/DirectedGraphPlugin.pm line 136."

I can't see anywhere in the 'configure' utility to configure plugins. The DirectedGraphPlugin.pm file indicates that only pre-Cairo versions need to be edited (not sure what Cairo is, but I think it's an old version of TWiki).

I'm clearly missing something - can someone help?

Thanks.

-- KeithEdmunds - 05 Jan 2009

Discussion and Answer

Cairo is a pre-4.0 release of TWiki.

Configure should pick up the settings in lib/TWiki/Plugins/DirectedGraphPlugin/Config.spec. If not, add those to the end of your lib/LocalSite.cfg file.

-- PeterThoeny - 05 Jan 2009

I don't have a lib/TWiki/Plugins/DirectedGraphPlugin directory. I created one and changed the ownership to the same as the Apache process and reinsatlled; now I have a Config.spec.

If I copy the settings in that to the end (before the "1;") of lib/LocalSite.cfg, I get a new error:

Perl error when reading LocalSite.cfg: syntax error at /var/www/twiki/lib/LocalSite.cfg line 171, near "/.."

That line (171) is:

$TWiki::cfg{DirectedGraphPlugin}{toolsPath} = $TWiki::cfg{PubDir}/../tools ;

[list of files removed]
tools/DirectedGraphPlugin.pl
Error: Failed to move file 'lib/TWiki/Plugins/DirectedGraphPlugin/' to /var/www/twiki/lib/TWiki/Plugins/DirectedGraphPlugin: Is a directory
Software error:
Installation terminated at /var/www/twiki/lib/TWiki/Configure/UIs/EXTEND.pm line 149.

Now when I try to look at any page on TWiki, I get Path to GraphViz commands not defined. Use bin/configure or edit DirectedGraphPlugin.pm  at /var/www/twiki/lib/TWiki/Plugins/DirectedGraphPlugin.pm line 136.

I'd be grateful for pointers to understand what is going wrong, thanks.

-- KeithEdmunds - 14 Jan 2009

I've resolved this by:

• Installing the ExtenderScript
• Running the installation script manually (which was done as root)
• Resetting the file permissions (which probably could have been obviated by running the installation script as the Apache user)

-- KeithEdmunds - 15 Jan 2009

Thanks for reporting back so that other users can learn!

-- PeterThoeny - 15 Jan 2009

If you answer a question - or someone answered one of your questions - please remember to edit the page and set the status to answered. The status selector is below the edit box.