When you install Portal for ArcGIS (10.3) should the complete set of configurable app templates be installed and accessible out of the box or does is require some configuration or additional installs? When I try to create a web app using a template I can see thumbnails and descriptions of all of the templates but when I choose a template I receive the below error. It seems like I may have missed something in the original install?
Configurable Web App Templates appear to be available
Once selected the contents is inaccessible "404 - File or directory not found. The resource you are looking for might have been removed, had its name changed, or is temporarily unavailable"