XUGGLE ERROR: Exception in thread "main" java.lang.NoClassDefFoundError: org/slf4j/LoggerFactory

Question

I am trying to execute the following code:

import com.xuggle.mediatool.IMediaReader;
import com.xuggle.mediatool.IMediaWriter;
import com.xuggle.mediatool.ToolFactory;
public class vidcon {

    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub
        IMediaReader reader = ToolFactory.makeReader("test.m4v");
        IMediaWriter writer = ToolFactory.makeWriter("out.flv");

        reader.addListener(writer);
        while(reader.readPacket() == null)
            ;
    }
}

But it is is giving me this error:

Exception in thread "main" java.lang.NoClassDefFoundError: org/slf4j/LoggerFactory
    at com.xuggle.ferry.JNILibrary.<clinit>(JNILibrary.java:42)
    at com.xuggle.ferry.FerryJNI.<clinit>(FerryJNI.java:14)
    at com.xuggle.ferry.Ferry.<clinit>(Ferry.java:25)
    at com.xuggle.xuggler.XugglerJNI.<clinit>(XugglerJNI.java:19)
    at com.xuggle.xuggler.IContainer.<clinit>(IContainer.java:1622)
    at com.xuggle.mediatool.MediaReader.<init>(MediaReader.java:137)
    at com.xuggle.mediatool.ToolFactory.makeReader(ToolFactory.java:77)
    at vidcon.main(vidcon.java:11)
Caused by: java.lang.ClassNotFoundException: org.slf4j.LoggerFactory
    at java.net.URLClassLoader$1.run(Unknown Source)
    at java.net.URLClassLoader$1.run(Unknown Source)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.net.URLClassLoader.findClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
    at java.lang.ClassLoader.loadClass(Unknown Source)
    ... 8 more

I have added SLF4J to my referenced libraries, but have no idea why this is not working.

Running on WIN 7, tried in eclipse and netbeans

Any idea?

Solution 1

Download SLF4J and put the slf4j-api-1.7.2.jar file onto your class path.

Solution 2

The following combination of jars is working for me:

log4j-1.2.16.jar
slf4j-api-1.7.6.jar
slf4j-simple-1.7.6.jar
xuggle-xuggler-5.4.jar

Solution 3

Cause Could be un-availability of dependency jars or version conflicts.

The following jars combination worked fine for me:

xuggle-xuggler-5.4.jar
slf4j-api-1.6.4.jar
logback-core-1.0.0.jar
logback-classic-1.0.0.jar

Solution 4

you might be added the apache-log4j-2.7-bin jars. Just Remove all those Jars and keep only

log4j-1.2.16.jar
slf4j-api-1.7.6.jar
slf4j-simple-1.7.6.jar
xuggle-xuggler-5.4.jar

Solution 5

Download SLF4J and put the slf4j-api-1.7.25.jar, slf4j-simple-1.7.25.jar files into application class path.

This will help to resolve this exception along with following exception SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder".

View more solutions

Comments

[jediz]

Possible duplicate of Caused by: java.lang.ClassNotFoundException: org.slf4j.LoggerFactory

[shamila]

I too have the same problem. I downloaded the SLF4J but I can't understand what you mean by the class path. I placed the slf4j-api-1.7.2.jar file in the directory where I have my class file of the java file, but it is still having the same problem.