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

Homebrew installs scala 2.10.5 with the formula scala210:

$ brew install scala210
==> Installing scala210 from homebrew/homebrew-versions
==> Downloading https://homebrew.bintray.com/bottles/scala210-2.10.5.yosemite.bottle.tar.gz

==> Downloading http://www.scala-lang.org/files/archive/scala-2.10.5.tgz
######################################################################## 100,0%

However, if you are using a build tool like maven or sbt, you should be able to set another scala version in your build config. You should then be able to import your project into IntelliJ and IntelliJ should automatically use the dependencies defined in your build config.

Answer 2

Using brew to install specific version:

$ brew search scala
==> Formulae
scala                scala@2.10           scala@2.11            scalaenv             
scalapack            scalariform          scalastyle

==> Casks
scala-ide

Make sure you default version in profile

$echo 'export PATH="/usr/local/opt/scala@2.11/bin:$PATH"' >> ~/.bash_profile

Answer 3

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

Answer 4

The following should work for Homebrew 0.9.5:

Install Tapped version of Scala 2.10

brew install homebrew/versions/scala210

Unlink version of Scala 2.11 (if installed)

brew unlink scala

Link Tapped version of Scala 2.10

brew link scala210 --force

Check scala version

scala -version

Answer 5

If you manage your project with sbt, the scala built tool, either directly or via IntelliJ, the version of scala for that code is defined in the build file (build.sbt or Build.scala):

scalaVersion  := "2.10.5"

Choosing this path, there isn't even a need to install scala on your Mac at all. Each project will have its own version -- pulled from your local ivy repository, so it doesn't have to download it each time.

And rather than typing scala to get to the REPL, you type sbt console to get to the REPL with the project's scala version and dependencies loaded.