Building with fornax has error "couldn't find or load config"

[ninjarobot]

The binaries from the fornax _lib directory aren't checked into source control, so after a fresh clone, there will be a confusing error that fornax "couldn't find or load config." This really occurs because of the missing _lib directory and contents and is explained in this fornax issue. The easiest way to get these is to create a new project with fornax and copy in the _lib directory.

mkdir temporary && cd temporary && dotnet tool run fornax new && cp -r _lib ../ && cd - && rm -r temporary

[ninjarobot]

Fixed by a206495