java.lang.NoClassDefFound Error: org/apache/log4j/Layout
by, 05-21-2011 at 10:22 PM (2766 Views)
You might have seen the following exception:
It may mean that log4j is not in your class path or you are using some outdated version of log4j.Java Code:java.lang.NoClassDefFoundError: org/apache/log4j/*
Get latest copy of log4j and put it in your class path. If JSP caused this, then put the log4j jar into WEB-INF/lib directory. Restart your application server (say Tomcat) and it should work now.
Get latest version of log4j from:
Apache log4j 1.2 - Download Apache log4j 1.2
Currently log4j 1.2.15 is available.