Hi, At present I try to deploy multiple web applications to Solr Jetty. So I add context files for each web application under the folder $SOLR.HOME/contexts. Now I get one library conflict issues：one of web applications uses old version of slf-4j, which conflict with the slf-4j libraries used by Solr itself. So, some error messages are printed on console as follow. How to config the web applications that avoid the conflict and keep different version of slf-4j for different applications.
log4j:ERROR A "org.apache.log4j.EnhancedPatternLayout" object is not assignable to a "org.apache.log4j.Layout" variable. log4j:ERROR The class "org.apache.log4j.Layout" was loaded by log4j:ERROR [WebAppClassLoader=QuartzWeb@77fbd92c] whereas object of type log4j:ERROR "org.apache.log4j.EnhancedPatternLayout" was loaded by [startJarLoad er@681a9515]. log4j:ERROR A "org.apache.log4j.EnhancedPatternLayout" object is not assignable to a "org.apache.log4j.Layout" variable. log4j:ERROR The class "org.apache.log4j.Layout" was loaded by log4j:ERROR [WebAppClassLoader=QuartzWeb@77fbd92c] whereas object of type log4j:ERROR "org.apache.log4j.EnhancedPatternLayout" was loaded by [startJarLoad er@681a9515]. log4j:ERROR No layout set for the appender named [file]. log4j:ERROR No layout set for the appender named [CONSOLE]. ThanksLiu Peng
