How to set heap size for sbt?

Question

I am using SBT 0.12.0. I have read other answers on stack overflow and followed them, however none of them helps, for example:

• create ForkRun clas

Answer 1

A quick way to do it is with a .jvmopts file in the root of your project (from the Lagom Framework documentation):

 $ cat .jvmopts
 -Xms512M
 -Xmx4096M
 -Xss2M
 -XX:MaxMetaspaceSize=1024M