I have tried zip installation, and the directly downloaded update-site.zip cannot be installed directly in place. I'm also very lazy and don't want to copy folders.
So I installed it through help->install new software. add Enter URL:
The link to the website comes from here (official website) (don't go to other people's blogs, especially Chinese blogs are outdated):
http://scala-ide.org/download/current.html
Directly copy the light green background URL link: Note that the supported versions are 3.8 to 4.3
Eclipse 3.8-4.3 (Juno and Kepler)
For Scala 2.11.2
http://download.scala-ide.org/sdk/helium/e38/scala211/stable/site
For Scala 2.10.4
http://download.scala-ide.org/sdk/helium/e38/scala210/stable/site
What if I want to support 3.7 or lower?
Click the link below for an earlier version