Spring Security Error : AuthenticationManager

error : The type org.springframework.security.authentication.AuthenticationManager cannot be resolved. It is indirectly referenced from required .class files

Spring Security error : When you get this error :

The type org.springframework.security.authentication.AuthenticationManager cannot be resolved. It is indirectly referenced from required .class files

The solution is :
1. Add spring-security-core to your build path. If you already have one, download the latest version.
2. after mvn clean install , if you still see error in eclipse. refresh the project.

<dependency>
    <groupId>org.springframework.security</groupId>
    <artifactId>spring-security-core</artifactId>
    <version>5.0.0.RELEASE</version>
 </dependency>