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I'm trying to upgrade from 2.11 to the latest 3.x.

in my user >addons I only installed 3x compatible adds on; however, I keep getting error msgs for the adds that are not there any more than were 2.x compatible I get an error like:

> 
> error Unable to load the following extension file...
>  If I try to load the old ones back in I eventually get a 500 error
> 
> 
> 

...any ideas?