c# - The type or namespace name 'Windows' could not be found

Question

I am trying to use filepicker for my hololens app. But I can't use it because my project can't add the 'windows' reference.

When I write using Windows.Storage

The type or namespace name 'Windows' could not be found -- This error message appears with red line under Windows.

I tried to add reference with reference manager, but I can't find anything such as Windows at the Assemblies - Framework.

Can anyone help me on this? Thanks!

Answer 1

Win 8.1 SDK was missing for me, so got the error.

Below steps resolved my issue:

Download and Start the "Visual Studio installer"  
  Click on the "Modify" button  
    Click "Individual components" tab  
    Under "SDKs, libraries and frameworks" heading  
      Select "Windows 8.1 SDK" (replace 8.1 with your Windows version.)  
      Click "Modify" to install  

Hope that helps.