`fvm list` says "Needs setup" but doesn't provide instructions

[matthew-carroll]

Running fvm list can show Flutter installations as "Needs setup" but doesn't provide any instructions for how to resolve that. What does it mean to "setup" the Flutter distro?

I found experimentally that running something like fvm flutter pub get will resolve this. I assume that "Needs setup" in this case means "needs to download Flutter engine". But I can't say for sure.