Hi,

I create this issue more to document the issue for others, rather than to ask for a fix:

Because of changes in .NET 8 SDK the dotnet watch mechanism can no longer run arbitrary commands:

https://learn.microsoft.com/en-us/dotnet/core/tools/dotnet-watch#arguments
dotnet/sdk#38340

This means dotnet watch tool webcompiler will secretly result in dotnet watch run tool webcompiler, which will start the current project with the arguments tool webcompiler instead of running webcompiler directly. I guess if you have setup the current project to run webcompiler on build it technically still kind of works, but certainly not as intended 😄.