I'm following this devmedia tutorial: link
In the Problems tab you have these two messages:
Archive for required library: '/home/arksdf/.m2/repository/com/fasterxml/jackson/core/jackson-databind/2.6.4/jackson-databind-2.6.4.jar' in project 'agenda' cannot be read or is not a valid ZIP file agenda Build path Build Path Problem
and
The project cannot be built until build path errors are resolved agenda Unknown Java Problem
I tried to remove the .m2 folder and use mvn clean install via terminal but the error persists.