SignalR Connection String Configuration failure

Hi

I am attempting to perfrom the following:
dotnet user-secrets set Azure:SignalR:ConnectionString ""

I get the following response
--> Could not load the MSBuild project 'G:\Development\FutureInfinite\orderIT\ProductDevelopment\OrderIT\Managers\StockPusher\oiStockPusherApp\oiStockPusherApp.csproj'.

I checked and am performing the operation in the directory where the CSPROJ is located. And the folder identified is the correct folder.

All the posts related to this issue have no solution provided. Anyone know why this happens?

Peter