What modifications should I make to a project that was ported to MyEclipse by Eclipse?

Write down this question and the solution here to make a memo.

Background: Colleagues with eclipse development projects, I have been detected from SVN encountered some problems, novice, more difficult, to lose friends help. The cause of the problem is roughly the inconsistency between the version of the eclipse JDK used by the colleague and me, and the servlet error in the class.

Solve:

Right-click on the item,

Choose Java Build Path and change the JDK without narration. To change the servlet:

ADD Library----->myeclipse Libraries-----> Modify the Java EE version.