Servlet Deploy in Eclipse
When i click on properpties>Run Package of perticular project which contains servlet class i am getting
following Exception, How to slove it.
Buildfile: D:\workspace\helloworld\packaging-build.xml
BUILD FAILED: Unable to load default ProjectHelper due to java.lang.NoClassDefFoundError: org/xml/sax/SAXParseException
Total time: 125 milliseconds
Thankyou.
[416 byte] By [
ansssss] at [2007-9-30 13:02:05]

I had this problem. I was running the Ant Build under JDK 1.3.1 when I thought it was running under JDK 1.4.2. Remember that JDK 1.3.1 doesn't include the XML APIs.
To fix, open up the Run, Debug or External Tools configuration that you're having problems with. Then click on the "JRE" tab. From here you can change the Java Runtime that the process is running under.
Alternatively, if you really want to run under JDK 1.3.1, add xml-apis and xerces jars to the classpath using this interface.