Rahul Agrawal [https://community.jboss.org/people/rahulamt] created the discussion "Unable to open a process in designer" To view the discussion, visit: https://community.jboss.org/message/798328#798328 -------------------------------------------------------------- After I created process in Guvnor repos and tried to open it the editor gave the following exception. 2013-02-19 18:05:52,821 ERROR [org.apache.catalina.core.ContainerBase.[jboss.web].[localhost].[/designer].[EditorHandler]] (http-0.0.0.0-8180-10) Servlet.service() for servlet EditorHandler threw exception java.lang.NoSuchMethodError: org.apache.commons.io.IOUtils.copy(Ljava/io/InputStream;Ljava/io/Writer;Ljava/lang/String;)V           at com.intalio.web.preprocessing.impl.JbpmPreprocessingUnit.getWorkitemConfigContent(JbpmPreprocessingUnit.java:244)           at com.intalio.web.preprocessing.impl.JbpmPreprocessingUnit.preprocess(JbpmPreprocessingUnit.java:137)           at org.oryxeditor.server.EditorHandler.doGet(EditorHandler.java:299)           at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)           at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)           at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)           at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)           at com.intalio.web.filter.impl.PluggableFilter.doFilter(PluggableFilter.java:75)           at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)           at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)           at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)           at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)           at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)           at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:235)           at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)           at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:190)           at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:92)           at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.process(SecurityContextEstablishmentValve.java:126)           at org.jboss.web.tomcat.security.SecurityContextEstablishmentValve.invoke(SecurityContextEstablishmentValve.java:70)           at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)           at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)           at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:158)           at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)           at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:330)           at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:829)           at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:598)           at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:447)           at java.lang.Thread.run(Thread.java:662) I am using Drools guvnor 5.3.1 war and designer-2.0-jboss7.war and depoloying them in jboss 5. -------------------------------------------------------------- Reply to this message by going to Community [https://community.jboss.org/message/798328#798328] Start a new discussion in jBPM at Community [https://community.jboss.org/choose-container!input.jspa?contentType=1&...]