Question

我刚刚下载了游戏2.2.2.RC2但是，当我运行play命令时，这是我得到的输出。我做错了什么？

java.lang.NoClassDefFoundError: scalax/io/Seekable
    at java.lang.ClassLoader.defineClass1(Native Method)
    at java.lang.ClassLoader.defineClass(ClassLoader.java:800)
    at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
    at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
    at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
    at java.lang.ClassLoader.defineClass1(Native Method)
    at java.lang.ClassLoader.defineClass(ClassLoader.java:800)
    at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142)
    at java.net.URLClassLoader.defineClass(URLClassLoader.java:449)
    at java.net.URLClassLoader.access$100(URLClassLoader.java:71)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:361)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
    at play.console.Console.run(Console.scala:201)
    at play.console.Console.run(Console.scala:198)
    at xsbt.boot.Launch$$anonfun$run$1.apply(Launch.scala:57)
    at xsbt.boot.Launch$.withContextLoader(Launch.scala:77)
    at xsbt.boot.Launch$.run(Launch.scala:57)
    at xsbt.boot.Launch$$anonfun$explicit$1.apply(Launch.scala:45)
    at xsbt.boot.Launch$.launch(Launch.scala:65)
    at xsbt.boot.Launch$.apply(Launch.scala:16)
    at xsbt.boot.Boot$.runImpl(Boot.scala:32)
    at xsbt.boot.Boot$.main(Boot.scala:21)
    at xsbt.boot.Boot.main(Boot.scala)
Caused by: java.lang.ClassNotFoundException: scalax.io.Seekable
    at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
    at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:425)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:358)
    ... 33 more
Error during sbt execution: java.lang.NoClassDefFoundError: scalax/io/Seekable

Answer 1

可能需要安装sbt;

尝试在命令提示符/控制台中运行“sbt”，如果你得到

    Cannot find sbt launcher 0.13.0
Please download: 
  From  http://typesafe.artifactoryonline.com/typesafe/ivy-releases/org.scala-sbt/sbt-launch/0.13.0/sbt-launch.jar
    To  /home/<your home directory>/.sbt/.lib/0.13.0/sbt-launch.jar

然后，按照其说明，一切都应该工作

Answer 2

打开命令提示符（Not Git-Bash提示符）并运行以下命令....

play clean-all
play compile
玩跑服务器应该开始。现在回到IDE（Eclipse）并刷新项目。如果问题解决了，那么njoy其他尝试别的东西:)

Answer 3

可能是您需要更新的project / plugins.sbt文件。

PlayFramework：执行sbt时出错：java.lang.NoClassDefFoundError：scalax / io / Seekable

3 个答案: