Hi All, when i am try to access with web application (in servlet i am getting error) I am using drools-5.2.0 javax.servlet.ServletException: Servlet execution threw an exception org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) root cause java.lang.NoSuchFieldError: DESCR org.drools.compiler.PackageBuilder.addKnowledgeResource(PackageBuilder.java:539) org.drools.builder.impl.KnowledgeBuilderImpl.add(KnowledgeBuilderImpl.java:28) Drools.doGet(Drools.java:54) javax.servlet.http.HttpServlet.service(HttpServlet.java:617) javax.servlet.http.HttpServlet.service(HttpServlet.java:717) org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96) -- View this message in context: http://drools.46999.n3.nabble.com/Integration-of-drools-with-webapplicati... Sent from the Drools: User forum mailing list archive at Nabble.com.