Trying to open and existing blazor WebAssembly app in Radzen Blazor Studio

I'm trying to open and existing Blazor WebAssembly application the Radzen Blazor Studio. The project opens but when I try to open a page it says Oh, no! The build failed. Check the errors in the Output Window.

They only thing in the output windows is

dotnet watch Started
Building...

Hi @BillLinck,

This can happen for various reasons. Can you send us that app to info@radzen.com? You can use some file storage service (google drive, one drive, dropbox).