[Ide-eclipse] JSP error: The superclass "Javax.servlet.http.HttpServlet" is not found on the Java Build Path

Because the Eclipse Web project does not automatically introduce the relevant jar package.

Right Click on the Project? Properties? Project Facets. You would is presented with the-screen, would look similar-to-the-following screen. On the right hand side, you would see both Tabs:details and runtimes. Click runtimes tab? Check the Apache tomcat server? Apply? Ok

That ' s it. This would solve the error.

Version compatibility issues with CAUTION:TOMCAT/JDK.

[Ide-eclipse] JSP error: The superclass "Javax.servlet.http.HttpServlet" is not found on the Java Build Path