Referenced file contains errors (small red Fork error in the first line of XML file) __xml error

When you develop a Web page in eclipse, you often encounter the first line of error when writing an XML file. A small red fork is quoted above the leftmost line.

Click to view the error message:

Referenced file contains errors (Http://www.springframework.org/schema/beans ...) Sort of. What I'm doing here is the spring applicationcontext.xml file, so I'm going to quote a constraint format error for the Spring framework. When I ran the project without a bug, I found that this error did not affect any of the project's functionality, but it was not always easy to report the small Red Cross error on the XML file and project. Try a number of ways, and summarize several solutions below.

First: Click on the Eclipse menu bar in the upper left corner to Project->clean clean up the project you are having problems with. Not only this problem, but also a lot of strange problems can be solved in this way

Second: first, to ensure that Eclipse can get XSD files remotely, to the cache under Window-> Preferences-> General-> Network Connections cache Check the entries box to see if the required file is correct, click "Remove All" if you are unsure, and then right-click the current Project selection validator,eclipse to reload the XSD file;

Third: If the error persists, then you need to delete the XSD file version number, for example:

Http://www.springframework.org/schema/context/spring-context-3.0.xsd

Change into: http://www.springframework.org/schema/context/spring-context.xsd