title: blazor wasm project errors only on visual studio code
body: <p>i have a blazor wasm app that runs whiteout problems, in visual studio i have no errors messages , But when i open it with visual studio code i have this error messages :</p>
  <p>The type or namespace name 'MainLayout' could not be found (are you missing a using directive or an assembly reference?)</p>
  <p>The type or namespace name 'NavMenu' could not be found (are you missing a using directive or an assembly reference?)</p>
  <p>Unable to open 'App.razor__virtual.cs': Unable to read file 'd:\VisualCodeProjects\GestionBLZ\GestionBLZ\Client\App.razor__virtual.cs' (Error: Unable to resolve non-existing file 'd:\VisualCodeProjects\GestionBLZ\GestionBLZ\Client\App.razor__virtual.cs').
  I tried it in visual studio and i had no errors</p>
  <p><a href="https://i.stack.imgur.com/5oEVl.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/5oEVl.jpg" alt="enter image description here" /></a></p>