I am running in a VM that is using Windows 2012 R2 and Sharepoint 2013 installed.
When I create a Office add-in that is empty. Or when I use one that is pre-defined like the examples in here.
I am getting the same error:
APP ERROR Sorry, we can't load the app. Please make sure you have network and/or Internet connectivity. Click "Retry" once you're back online.
The localhost web is accessible without problem. The web application is using IIS Express. Should I configure something on VM or IE options ? Already updated the Office 2013 to use the SP1.