Currently i'm trying to build an extra for a website with the tutorial I found at
http://rtfm.modx.com/display/revolution20/Developing+an+Extra+in+MODX+Revolution. Somewhere in the tutorial I got the error 'Class 'modExtraManagerController' not found', and found out that the class modManagerController is not present in the version of modx i'm working in (2.0.8 ). This is a website of a client of mine, and it's not an option to upgrade.
Is there any workaround so I don't have to use the modExtraManagerController? Or is there a tutorial that shows me how to make an Extra for 2.0.8 ?
Hopefully someone can help me...
(ps: sorry for my english, i'm dutch

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