Can't access Theme
I have been using a theme for several weeks now on a few different projects. Today I wanted to test an interaction, and decided to create a new project for this purpose. However, I was unable to access my theme. Even in existing projects, where the theme exists, if I try to select it from the Design or Master Slide tabs, I get the following error message:
I haven't moved or altered this file, so I'm perplexed as to why I can't access it (especially since existing projects make use of it).
Can anyone suggest a solution?