validateJarFile(servlet-api.jar) - jar not loaded in tomcat using eclipse [duplicate]

Answer 1

Try this to remove the warning message you were getting.

• The Servlet specs say you are not allowed to have servlet.jar in your webapps lib directory.
• If you want to get rid of the warning simply remove servlet.jar from

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C:\Program Files\Apache Software Foundation\Tomcat 7.0\webapps\YOUR_project\WEB-INF\lib

Answer 2

The error you are getting is because servlet-api needs to be on compile time build path, at runtime your app will have the servlet-api available from tomcat/lib

So add it to your build path simply, In short servlet-api is required at compile aswell as runtime