When i want to run one of my j2ee applications on jboss i will get this error: anonymous wrote : 4:39:01,593 ERROR [MainDeployer] Could not create deployment: file:/F:/jboss-version440/server/all/deploy/Web1.war | java.lang.NoClassDefFoundError: javax/servlet/Servlet | at java.lang.ClassLoader.defineClass1(Native Method) | at java.lang.ClassLoader.defineClass(ClassLoader.java:620) | at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124) | at java.net.URLClassLoader.defineClass(URLClassLoader.java:260) | at java.net.URLClassLoader.access$100(URLClassLoader.java:56) | at java.net.URLClassLoader$1.run(URLClassLoader.java:195) | at java.security.AccessController.doPrivileged(Native Method) | at java.net.URLClassLoader.findClass(URLClassLoader.java:188) | at java.lang.ClassLoader.loadClass(ClassLoader.java:306) | at java.lang.ClassLoader.loadClass(ClassLoader.java:299) | at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:268) | at java.lang.ClassLoader.loadClass(ClassLoader.java:299) | at java.lang.ClassLoader.loadClass(ClassLoader.java:299) I got the required jar files in the web-inf/lib folder(I tested it on another pc and it worked) so i think its a windows/java issue Anybody got an idea how to solve this problem our where i should look to solve it? thanks, Niels View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3975144#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...