Error when opening 3.0.4 Project into 3.1.0


I have been working on v3.0.4, and I downloaded (and fully updated) 3.1.0. Some projects from 3.0.4 open up just fine, but one (very important) project gives this error when attempting to open in 3.1.0

unsupported operand type(s) for *=: ‘NoneType’ and ‘float’

Any help on what I can do to my project in 3.0.4 so that it opens properly in 3.1.0? Thank you!


Hi, can you please post the full traceback that appears on terminal after you close this popup? thanks


Here is the entire console.