Mark, in the development of multiple projects, sometimes there is such a problem. After closing a project, it is found that all projects in eclipse cannot use maven for bulid and test. After running Maven bulid, there is always this bullet. box, as follows
Solution:
There are some solutions for such problems on the Internet, but none of them are found to be easy to use. In fact, it is very simple. Right-click the project and select Disable workspace Resolution.