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

After trying all these procedures it still didn't work for me. What did work was

1. go into File Explorer and delete the .classpath file under the project's root folder
2. run Maven update within Eclipse, and check Force update of Snapshots/Releases

Our current work required integrating a number of disparate projects so unfortunately use of SNAPSHOTs in a production environment were required (taboo in Maven circles)!