After saving a .capx project, and trying to reopen it, I get this message:
Failed to open project
Parameter specifies variable 'ToolTipEnabled' which does not appear to be an instance variable in 'PlaceableTile'
Line 4104, column 25
In Event sheet 1.xml
The file may be invalid. Try checking the file in a text editor (projects are saved in xml format).
I believe I know what happened. The object 'PlaceableTile' was part of a Family called 'ToolTips'. This family had a boolean variable 'ToolTipEnabled'. However, I removed PlaceableTile from this family after setting a default value for this variable, which might have screwed things up. I believe I used the right-click context menu to remove the PlaceableTile object from the family, which I've never done before.
How do I fix my project? I don't want to go in there and blindy delete things and completely screw it up. To be clear, it is saved as a .capx.