Thread: Error while deploying .ear file

While deploying .ear file in Oracle application server 10g, i am getting following error

Error:
Deployment failed: Nested exception
Resolution:

Base Exception:
java.rmi.RemoteException
deploy failed: ;nested exception is:
oracle.oc4j.admin.internal.DeployerExceptionLError initializing ejb-module;Exception Error loading class 'xxxxx':
java.lang.NoClassDefFoundErrorLorg/apache/log4j/Logger.deploy failed:;nested Exception is:
oracle.oc4j.admin.internal.DeployerExceptionLError initializing ejb-module;Exception Error loading class 'xxxxx':
java.lang.NoClassDefFoundError;rg/apache/log4j/Logger

I use eclipse IDE with web server .

Any suggestions are highly appreciated.

Looks to me like you need to place the log4j.jar file in your application servers lib folder or on the classpath in one way or another.

// Json