The ChatServer.sln still tries to include Libraries\Alchemy-Websockets\src\Alchemy\Alchemy.csproj, but that project file doesn't exist. It was removed when the project was switched to the NuGet package, just the reference was still left in the solution.
The ChatServer.sln still tries to include Libraries\Alchemy-Websockets\src\Alchemy\Alchemy.csproj, but that project file doesn't exist. It was removed when the project was switched to the NuGet package, just the reference was still left in the solution.