An error occurred in Eclipse importing MAVEN project: Unsupported Iclasspathentry kind=4

Importing a MAVEN project using eclipse failed with the hint:An internal error occurred during: "Importing Maven Projects".
Unsupported iclasspathentry kind=4

There are two things to do to fix this problem

1, ensure that the version of M2E plug-in is higher than 1.1.0, if not to the site upgrade: https://repository.sonatype.org/content/repositories/forge-sites/m2e/1.1.0/N/LATEST/

2, remove the project Maven features, the right-click menu can be removed, and then perform MVN Eclipse:clean, and re-activate the MAVEN feature

If you can't solve the problem, you can try the following methods ( my problem is resolved as above, so do not try the following ideas, please do it carefully, it is better to do the backup first ) is to delete the following folders and files from the project and re-import them.

Deleted files and folders:

. settings
. Project
. classpath
. Springbean (if any)

Reference Links:
http://blog.csdn.net/kongqz/article/details/7770765
Http://stackoverflow.com