How to install an older version of scala - 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 brew, I keep getting the following error
Error: No available formula for 2.10.5
I tried downloading the binaries for scala download page but when I load the SDK and all the libraries in IntelliJ, I just get this error
Error:scalac: No 'scala-library*.jar' in Scala compiler classpath in Scala SDK scala-sdk-2.10.5
So what is the right way to install an older version of scala and setting the same in intellij

Answer 1

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 2

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 3

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.

Answer 4

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 5

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