Missing Class errors during install
In addition to their internal functionality, many of my addons make use of facilities provided in others to enhance their own capabilities. The consequence is that occasionally an update to an addon will depend, where another of my addons is installed, on an update to the other addon.
Before installing any of my addons, please make sure any of my addons already installed are up-to-date.
You can also exclude a block from any consideration by Syntax Anywhere by wrapping it with the class "syntax-anywhere-exclude" or specifying an id or class for the block in the Exclude section of thye Syntax Anywhere edit dialog.