The import cannot be resolved in eclipse [duplicate]

Answer 1

I've seen this happen and another approach to take which is similar to m0skit0 solution (if you are using Eclipse) is to right click on the project, select maven, select update project, make sure clean projects and refresh workspace are checked, and hit ok.

Answer 2

In my experience, it is usual with Eclipse to have the build messed up. Make sure Build automatically is checked and Clean. If it doesn't work, restart Eclipse and do again.

Also as Tech Junkie comments below, try also Clean all projects.

Answer 3

After hours of struggle, creating a new Eclipse workspace, reimporting the projects and resetting up the same tomcat instance worked.

Probably the eclipse settings got messed up, and the deploy wasn't being done correctly anymore.