Where can I set proxy for SBT in Intellij IDEA?

Question

I am using Intellij IDEA 14.1.3 edition and have installed Scala plugin. When creating SBT project, it reports the following error:

Answer 1

In my situation I have tried all above solutions, but they did not work.

In the end I have configured HTTP proxy for the whole IntellJ, and that have resolved my issues.

Settings > Appearance & Behaviour > System Settings > Http Proxy