Java PlayFramework2:在生成路径中找不到sbt依赖项

这是我的身材

name := """project_name"""

version := "1.0-SNAPSHOT"

lazy val root = (project in file(".")).enablePlugins(PlayJava)

scalaVersion := "2.11.1"

libraryDependencies ++= Seq(
  javaJdbc,
  javaEbean,
  cache,
  javaWs,
  "mysql" % "mysql-connector-java" % "5.1.26",
  "com.alibaba" % "fastjson" % "1.1.21"
)

我正在尝试使用com.alibaba上的fastjson，请正确下载：

[info] Updating {file:/activator-1.2.3-minimal/projects/project_name/}root...
[info] Resolving jline#jline;2.11 ...
[info] downloading http://repo1.maven.org/maven2/com/alibaba/fastjson/1.1.21/fastjson-1.1.21.jar ...
[info]  [SUCCESSFUL ] com.alibaba#fastjson;1.1.21!fastjson.jar (14138ms)
[info] Done updating.

---

但我仍然无法在构建路径中找到它，也无法在代码中使用它Eclipse找不到fastjson类。

如果SBT可以构建它，但Eclipse不能，请尝试从SBT重新生成Eclipse项目：