Error during loading of plugin

[anonymous]

The debug log shows the following information:

2009-12-14 12:05:27,823 Trac[loader] DEBUG: Loading MultipleWorkflowPlugin from d:\daten\trac\projekte\ish\plugins\multipleworkflowplugin-1.0-py2.5.egg 2009-12-14 12:05:27,823 Trac[loader] ERROR: Skipping "MultipleWorkflowPlugin = MultipleWorkflowPlugin": (can't import "ImportError: No module named MultipleWorkflowPlugin")

I installed the plugin using the admin page=>plugins=>install plugin. When I install it again, I get the message "already installed": I activated the plugin in the trac.ini as shown in the example...

"Enable the plugin with: [components] multipleworkflowplugin.* = enabled multipleworkflowplugin.multipleworkflowplugin.multipleworkflowplugin = enabled

Add the controller to the workflow controller list: [ticket] workflow=MultipleWorkflowPlugin

For using it you should have in the trac.ini file the [ticket-workflow] session because when a section for a ticket type doesn't exist trac uses the [ticket-workflow] for the actions to do. If you want to define different workflows than you should create in trac.ini sections called [ticket-workflow-ticket_type] where ticket_type is the type of ticket you want to use this section,you can create all the sections you want and trac will use them when that kind of ticket is being used,you can create ticket type in the admin pannel under ticket types. "

Any idea, what I did wrong?

Kind regards, Andreas

I am using Trac 0.11.6