I believe it may be the JVM in question causing this error. A while back, I tried to bump up my JDK from 1.4.2 to 1.5 and it caused all kinds of complilation errors, and errors like this as well. And I'm still on the TC 4.1.x series. I had to uninstall that JDK's JVm to get everything to compile again.
-----Original Message----- From: Deepa Paranjpe [mailto:[EMAIL PROTECTED] Sent: Monday, July 09, 2007 11:21 AM To: users@tomcat.apache.org Subject: Changing tomcat version Hi all, I was using tomcat's version of 4.1 for a long time and it was working fine. But then I decided to move to version 6. I kept getting these errors --> javax.servlet.ServletException: Cannot allocate servlet instance for path /mystuff/servlet/RelatedQuestions org.apache.catalina.servlets.InvokerServlet.serveRequest(InvokerServlet.java:389) org.apache.catalina.servlets.InvokerServlet.doGet(InvokerServlet.java:134) javax.servlet.http.HttpServlet.service(HttpServlet.java:690) javax.servlet.http.HttpServlet.service(HttpServlet.java:803) root cause java.lang.NoClassDefFoundError: javax/servlet/http/HttpServlet When I tried to move back to version 4 -- even the main page i.e. localhost:8080/ doesn't show anything. How can I fix this problem? Please help. Thanks much in advance, Deepa --------------------------------- Sucker-punch spam with award-winning protection. Try the free Yahoo! Mail Beta. --------------------------------------------------------------------- To start a new topic, e-mail: users@tomcat.apache.org To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]