java.lang.ClassNotFoundException: ch.qos.logback.classic.spi.ThrowableProxy?

Question

while starting my weblogic(having my app war file containing logback-classic-1.0.1.jar),i am getting below exception.Any suggestion ?

Answer 1

I solved this problem by doing "mvn install" instead of "mvn clean install".

Answer 2

If you exactly ensure that logback-class and logback-core already are in your classpath. See below. In your Logback.xml, you need add debug="true"

<configuration debug="true">

I encountered the problem 'java.lang.NoClassDefFoundError: ch/qos/logback/classic/spi/ThrowableProxy' in my tomcat. However, after adding debug = 'true', anything is ok.