I am using Intellij IDEA 14.1.3 edition and have installed Scala plugin. When creating SBT project, it reports the following error:
I was seeing this same error message and tried all the suggestions mentioned in multiple (related) threads. I was able to finally resolve the problem by setting up the HTTP Proxy directly in IntelliJ. Here's what my settings look like (Note: specify your network username and password in the corresponding boxes):-