HTTP error Comunicating with Server - resource file upload

I am trying to add a file into resources and I am getting an error:

I have tried to restart studio and add other files and I get the same, these are all files that are loaded into other solutions as well so I know they should work!

Hi Kendall!

Are you still facing the same issue?

This looks like something our support team needs to look at. Could you please open a ticket in ServiceDesk?