Eclipse JS Error Problem Solving method

The recent import of new projects in eclipse will find JS error, but does not affect the operation of the program, but for the programmer we are more concerned about the code in front of the red X, there is wood???

The internet also looked up a lot of methods, for one of the methods means that can not completely solve the problem, that is, window>preferences>validation>disable all, because some eclispe there is no JS Validation or JavaScript validation that, some just html/jsp and so on,

Second, to consider this approach, right-click the project, build path> Configure build path...> left Javascript>include path>source>excluded> Select Edit to ignore the JS folder or file selection can (in excluded select) such as

Eclipse JS Error Problem Solving method