Sir, I am new to weka eclipse ; I have just installed weka in eclipse workbench, now I want to run a given classifier algorithm on Reuters dataset (as my research area is text categorization); but i don't how to proceed for it in Weka project in eclipse workbench. Also, i am confused how to load dataset. When I run any chosen algorithm in the Weka project, it showed the error : "selection does not contain main type" and "can not load main class or method". So, please show me how to proceed for it.. Thanking you in advance