Note: information on this page refers to Ceylon 1.1, not to the current release.

Installing Ceylon IDE

The 1.1.0 release of the Ceylon IDE is available from our Eclipse plugin update site. Note that the version of the Ceylon compiler embedded in this release is compatible with the Ceylon 1.1.0 command line tools.

Eclipse platform

You'll need a clean installation of Eclipse 4.4 (Luna) or of Eclipse 4.3 (Kepler).

Java 7+ requirement

The Eclipse platform must itself be executing on Java 7 or 8. Ceylon IDE is not compatible with Java 6 or earlier.

Installing the Ceylon plugin from the update site

Here's what you need to do to install the IDE:

  1. Start Eclipse.
  2. Go to Help > Install New Software....
  3. Enter the URL in the Work with field and hit Enter.
    Update Site
  4. Click Select All and then Finish.
  5. Wait while Eclipse installs the Ceylon plugin, and then restart Eclipse when prompted.
  6. Go to Help > Welcome to Ceylon to get started.

Installing from the development (unstable) update site

If you want to try the latest build of the IDE before it is released, you have to use the development update site:

Beware that this is an unstable and unfinished version.


Please report any issue in our issue tracker. Note that if Ceylon IDE doesn't work at all, the problem is probably that Eclipse is not executing on a Java 7 VM.