Hello, I programmed a plugin. When I run ant after I had done the everything required, the message was that the packages were not existed such as " org.apache.nutch.util" , "org.apache.nutch.plugin" and so on.
What's more, when I run ant in the nutch-0.7.2\src\plugin\urlfilter-regex, the error was still like above. Why? Thank you.
