How to install an older version of scala

Question

I currently had installed scala 2.11.7 but in order to fix this issue, I have to install a older version of scala(2.10.5). When I try to install with b

Answer 1

brew search scala

then you will find all the available versions like below

scala                     scala@2.10                scala@2.11                scalaenv                  scalariform               scalastyle
homebrew/science/scalapack                                                     Caskroom/cask/scala-ide

Then choose whichever version you want to install. say if you want to install scala 2.11 then you can do that by runnig the command like below

brew install scala@2.11