How to resolve : Can not find the tag library descriptor for “http://java.sun.com/jsp/jstl/core” [duplicate]

I know this thread is a year old now but having experienced the same problem I managed to solve the problem by setting a target server for my project.

i.e. right-click on your project and select ‘Properties’ -> ‘Targeted Runtimes’ and select the server you going to run your web app on (Tomcat 6 or 7).

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