An internal error occurred during: “Updating Maven Project”. Unsupported IClasspathEntry kind=4

Question

As the title mentioned I have the following problem: I use Eclipse with Maven Nature and when I update my Maven Project, I get this error:

Answer 1

I imported the project as general project from git repository.

• Deleted .settings, .project and .classpath in project's folder
• Configure -> Convert to Maven Project. Only this solved the problem in my case.