Archive for required library in project 'demo' cannot be read or is not a valid

getting issue : Archive for required library: '/home/user/.m2/repository/org/springframework/spring-core/5.3.9/spring-core-5.3.9.jar' in project 'demo' cannot be read or is not a valid ZIP file demo Build path Build Path Problem

Solution is respective jar is not downloaded correctly be either 

1.relaunch eclips

2.Goto path and delete respective directory so maven will fetch new one 

so above example 

goto /home/user/.m2/repository/org/springframework/spring-core/5.3.9/

and delete 5.3.9 dirctory.

Delete all the jar directory for which you are getting error