Welcome to Kotlin for Eclipse project! Some handy links:

• Kotlin Site
• Getting Started Guide
• Kotlin on Eclipse Marketplace
• Issue Tracker: File New Issue, All Open Issues
• Kotlin Blog
• Forum
• TeamCity CI build
• Follow Kotlin on Twitter

To give it a try you will need a clean installation of Eclipse Neon or newer. The Kotlin plugin is available from the Eclipse Marketplace. The easiest way to install the Kotlin plugin is to drag-and-drop this button into a running Eclipse window:

Alternatively, you can use Help -> Eclipse Marketplace… menu, or the following update site:

https://dl.bintray.com/jetbrains/kotlin/eclipse-plugin/last/

Eclipse IDE for Eclipse Committers is the recommended way to build and develop the kotlin-eclipse project. Eclipse Oxygen 4.7 is used so far.

In order to start development in Eclipse:

• Install the AspectJ Eclipse plug-in for Eclipse 4.7. To install AJDT 2.2.4 use the following update site:

   http://download.eclipse.org/tools/ajdt/47/dev/update
  

• Since Kotlin plugin contains code written in Kotlin itself, you will also need a Kotlin plugin to build the project in Eclipse. To install the Kotlin Eclipse plugin use the following update site:

   https://teamcity.jetbrains.com/guestAuth/repository/download/Kotlin_EclipsePlugin/bootstrap.tcbuildtag/
  

• Since Kotlin plugin uses weaving, you need to launch the project with weaving enabled. Installation of Equinox Weaving Launcher will add two additional launch configurations types for running plugin and for testing. To install the Equinox Weaving Launcher you can use the following update site:

   http://download.scala-ide.org/plugins/equinox-weaving-launcher/releases/site/
  

• Import plugin projects from the cloned repository into your workspace

   File -> Import -> Existing Projects into Workspace
  

• Using the command line, run gradle build to download the Kotlin compiler. It will be used as a bundled compiler in built plugin and as a library during development.

  cd {repository}/kotlin-bundled-compiler
  ./gradlew clean getBundled
  

  or in Windows environment:

  cd {repository}\kotlin-bundled-compiler
  gradlew.bat clean getBundled
  

• Run another instance of Eclipse with the Kotlin plugin inside

   kotlin-eclipse-ui -> Run As -> Eclipse Weaving enabled Eclipse Application
  

Building from the command line is also available (Note that Maven 3.0.5 is required):

cd {repository}
mvn install

Latest stable release:

https://dl.bintray.com/jetbrains/kotlin/eclipse-plugin/last/

Any previously released version (replace :version with the version number):

https://dl.bintray.com/jetbrains/kotlin/eclipse-plugin/:version/

Nightly build:

https://teamcity.jetbrains.com/guestAuth/repository/download/Kotlin_EclipsePlugin/.lastSuccessful/

See basic developer documentation here