Hi,
I am new to unity and game behavior. I am using Unity 2017.4.3f1. When I open the BTassets01 package, there are a lot of errors. Is my unity version right for the download file?
Kent
Had the same issue.
The file contains an old version of the standard assets folder. You have to import the file again, I think it was the cross platform assets I had to re-import.
This could help: