Which build of FinalBuilder 8? I have not be able to reproduce this here with the latest build. What is the value in the $(Project) variable? The error is occurring when expanding the Section field (ie expanding $(Project) ).
A little experimentation shows it only occurs when the variable is called ‘Project’. It doesn’t matter what the value is, and creating a brand new file with one line and that variable causes it to fail.
I can rename the variable which is a workaround at least.
I have found that this is due to Project being a reserved namespace now. I have added protections to the variable edit dialog to not allow the adding of a project variable (as well as application, environment, and local). This will be available in the next release of FinalBuilder. In the meantime renaming the variable is the suggested course of action.