Eclipse not updating referenced libraries for my Play framework application

Question

Since I'm eager to use Elastic Search in my Play 2 project I have read through http://www.elasticsearch.org/guide/reference/java-api/ and added the dependency:

Build.scala:

import sbt._
import Keys._
import PlayProject._

object ApplicationBuild extends Build {

    val appName         = "test"
    val appVersion      = "1.0-SNAPSHOT"

    val appDependencies = Seq(
      // Add your project dependencies here,
      "mysql" % "mysql-connector-java" % "5.1.18",      
      "org.elasticsearch" % "elasticsearch" % "0.19.10"
    )

    val main = PlayProject(appName, appVersion, appDependencies, mainLang = JAVA).settings(
      // Add your own project settings here
      resolvers += Resolver.url("GitHub Play2-elasticsearch Repository", url("http://cleverage.github.com/play2-elasticsearch/releases/"))(Resolver.ivyStylePatterns)      
    )
}

The dependecy is found and downloaded, checking with play dependencies:

Here are the resolved dependencies of your application:

+-------------------------------------------------------------------+---------------------------------------------------------+------------------------------------+
| Module                                                            | Required by                                             | Note                               |
+-------------------------------------------------------------------+---------------------------------------------------------+------------------------------------+
| org.elasticsearch:elasticsearch:0.19.10                           | test:test_2.9.1:1.0-SNAPSHOT                            | As elasticsearch-0.19.10.jar       |
+-------------------------------------------------------------------+---------------------------------------------------------+------------------------------------+
| org.apache.lucene:lucene-highlighter:3.6.1                        | org.elasticsearch:elasticsearch:0.19.10                 | As lucene-highlighter-3.6.1.jar    |
+-------------------------------------------------------------------+---------------------------------------------------------+------------------------------------+
| org.apache.lucene:lucene-memory:3.6.1                             | org.elasticsearch:elasticsearch:0.19.10                 | As lucene-memory-3.6.1.jar         |
|                                                                   | org.apache.lucene:lucene-highlighter:3.6.1              |                                    |
+-------------------------------------------------------------------+---------------------------------------------------------+------------------------------------+
| org.apache.lucene:lucene-queries:3.6.1                            | org.elasticsearch:elasticsearch:0.19.10                 | As lucene-queries-3.6.1.jar        |
|                                                                   | org.apache.lucene:lucene-highlighter:3.6.1              |                                    |
+-------------------------------------------------------------------+---------------------------------------------------------+------------------------------------+
| jakarta-regexp:jakarta-regexp:1.4                                 | org.apache.lucene:lucene-queries:3.6.1                  |                                    |
+-------------------------------------------------------------------+---------------------------------------------------------+------------------------------------+
| org.apache.lucene:lucene-analyzers:3.6.1                          | org.elasticsearch:elasticsearch:0.19.10                 | As lucene-analyzers-3.6.1.jar      |
+-------------------------------------------------------------------+---------------------------------------------------------+------------------------------------+
| org.apache.lucene:lucene-core:3.6.1                               | org.apache.lucene:lucene-analyzers:3.6.1                | As lucene-core-3.6.1.jar           |
|                                                                   | org.apache.lucene:lucene-queries:3.6.1                  |                                    |
|                                                                   | org.elasticsearch:elasticsearch:0.19.10                 |                                    |
|                                                                   | org.apache.lucene:lucene-memory:3.6.1                   |                                    |
|                                                                   | org.apache.lucene:lucene-highlighter:3.6.1              |                                    |
+-------------------------------------------------------------------+---------------------------------------------------------+------------------------------------+
| mysql:mysql-connector-java:5.1.18                                 | test:test_2.9.1:1.0-SNAPSHOT                            | As mysql-connector-java-5.1.18.jar |
+-------------------------------------------------------------------+---------------------------------------------------------+------------------------------------+
| play:play_2.9.1:2.0.3                                             | test:test_2.9.1:1.0-SNAPSHOT                            | As play_2.9.1.jar                  |
...

But in eclipse I can't use elasticsearch since it can't find the libraries. I'm not even able to import it.

What am I missing here?

Answer 1

You have to redo an eclipsify in the Play console after adding your new dependency (ie after updating your Build.scala file).

It will generate a new .classpath file for Eclipse containing your new dependency.

Answer 2

If there is Build.scala set up properly, and an info about required library found in newly-generated .classpath file, than try to run play eclipsify and if it works NOT, simply restart Eclipse. It worked for me.