Why does sbt compile fail with StackOverflowError?

Question

I am working on a Scala project that has been in existence for a few years but is new to me. My task is to upgrade it from Scala 2.9.3 to 2.11.7, along with its dependencies. I

Answer 1

I was unable to get this to work via the provided answers. build.sbt settings and the sbtopts file both failed to solve this error for me. What I had to do was run sbt with the -mem flag, for example:

sbt -mem 2048 compile

and now my projects built. If using IntelliJ you can also go to

Preferences > Build, Execution, Deployment > Build Tools > sbt 

and set Maximum heap size, MB to whatever target you need.