I've been seeing this in the Toolkit builds on my machine for a while, thought it may go away once we moved from .NET 5 to .NET 7, but still see it:

If I rebuild/deploy then sometimes I hit it again and other times it's just fine, so seems like a race condition on disk or something?

Happened on version 7.0.27

I've seen it building the WASM heads for our all-up sample and for individual component samples.