After having installed sbt version 0.13.13 (with brew) on Mac 10.12.2 with scala 2.12.0, I tried the first example on the documentation (as per subject sbt new sbt/sca
I've experienced similar problem. The way I solved is by installing sdkman:
curl -s "https://get.sdkman.io" | bash
Then, instead of my system package manager, I use sdkman to install the scala stuff:
sdk install java
sdk install sbt
sdk install scala
After that, the examples from the documentation works fine in my machine.