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Thread: [SLF4J] 'java.lang.NoClassDefFoundError: org/slf4j/LoggerFactory'

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    Default [SLF4J] 'java.lang.NoClassDefFoundError: org/slf4j/LoggerFactory'

    This is for a RuneScape Private Server.
    This is on a CentOS Virtual Private Server.

    [8/16/11 9:11 PM]: Exception in thread "main" [8/16/11 9:11 PM]: java.lang.NoClassDefFoundError: org/slf4j/LoggerFactory
    [8/16/11 9:11 PM]: at org.apache.mina.util.NamePreservingRunnable.<init> (NamePreservingRunnable.java:32)
    [8/16/11 9:11 PM]: at org.apache.mina.transport.socket.nio.SocketAccepto r.startupWorker(SocketAcceptor.java:165)
    [8/16/11 9:11 PM]: at org.apache.mina.transport.socket.nio.SocketAccepto r.bind(SocketAcceptor.java:141)
    [8/16/11 9:11 PM]: at server.Server.main(Server.java:144)
    [8/16/11 9:11 PM]: Caused by: java.lang.ClassNotFoundException: org.slf4j.LoggerFactory
    [8/16/11 9:11 PM]: at java.net.URLClassLoader$1.run(URLClassLoader.java: 202)
    [8/16/11 9:11 PM]: at java.security.AccessController.doPrivileged(Native Method)
    [8/16/11 9:11 PM]: at java.net.URLClassLoader.findClass(URLClassLoader.j ava:190)
    [8/16/11 9:11 PM]: at java.lang.ClassLoader.loadClass(ClassLoader.java:3 06)
    [8/16/11 9:11 PM]: at sun.misc.Launcher$AppClassLoader.loadClass(Launche r.java:301)
    [8/16/11 9:11 PM]: at java.lang.ClassLoader.loadClass(ClassLoader.java:2 47)
    [8/16/11 9:11 PM]: ... 4 more
    This is the folder layout:

    Last edited by Jonathansafc; August 17th, 2011 at 03:28 PM.


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    Super Moderator copeg's Avatar
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    Default Re: [SLF4J] 'java.lang.NoClassDefFoundError: org/slf4j/LoggerFactory'

    A typical cause of this exception is that the required libraries are not on the class path. So are all the jars in the dependency folder on the classpath?

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    Default Re: [SLF4J] 'java.lang.NoClassDefFoundError: org/slf4j/LoggerFactory'

    I have Private Messaged you, copeg, please answer

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    Super Moderator copeg's Avatar
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    Default Re: [SLF4J] 'java.lang.NoClassDefFoundError: org/slf4j/LoggerFactory'

    Communicating via private messages defeats the purpose of a public forum - your solution here might help others in the future, and this is lost via PM. I recommend reading about the classpath
    PATH and CLASSPATH (The Java™ Tutorials > Essential Classes > The Platform Environment)
    As well as how to set it for your particular application (which I presume has some sort of help, documentation, etc)

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    Default Re: [SLF4J] 'java.lang.NoClassDefFoundError: org/slf4j/LoggerFactory'

    I changed from CentOS to Ubuntu and I'm currently following a guide to install it correctly, but I'm going to sleep now. I'll be back tomorrow.

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    Default Re: [SLF4J] 'java.lang.NoClassDefFoundError: org/slf4j/LoggerFactory'

    What IDE do you use?
    Please use [highlight=Java] code [/highlight] tags when posting your code.
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    Default Re: [SLF4J] 'java.lang.NoClassDefFoundError: org/slf4j/LoggerFactory'

    I don't use one, I just use Notepad++

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    Default Re: [SLF4J] 'java.lang.NoClassDefFoundError: org/slf4j/LoggerFactory'

    The OP private messaged me as well, but I agree entirely with everything copeg said. Follow his directions, and if you still have questions, ask them here (not in a private message).
    Useful links: How to Ask Questions the Smart Way | Use Code Tags | Java Tutorials
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