Styled Text + and RapidWeaver 6
The Styled Text+ plugin was originally released in 2007 and was actively developed from 2007-2010.
The advent and popularity of the Stacks plugin eventually rendered the Styled Text+ plugin obsolete and in 2010 the Styled Text+ plugin was discontinued and in 2011 it was "end-of-lifed".
I sent out numerous emails from 2010-2012 alerting people that the plugin had been discontinued and that content needed to be migrated to either a Stacks page or a Styled Text (stock page style) page.
Because there were many copies floating around on the web and because the plugin continued to work in RapidWeaver 5 a lot of people continued to use it. However, the plugin WILL NOT work with RapidWeaver 6 and it can not be made to work with RapidWeaver 6.
You can still open your document in RW5 however and I suggest that you follow these steps:
1. Open your project in RW5 and transfer your content from the Styled Text+ page onto a Styled text page or a Stacks page.
2. Once you have done that then you can safely delete the old Styled Text+ plugin and open your project in RapidWeaver 6.
Hope that helps.