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I was trying to build docker image(mvn install docker:build) for chapter18/docker/hello-swarm example. I am getting bellow exception.

[ERROR] Failed to execute goal io.fabric8:docker-maven-plugin:0.25.2:build (default-cli) on project helloswarm-docker: Execution default-cli of goal io.fabric8:docker-maven-plugin:0.25.2:build failed: A required class was missing while executing io.fabric8:docker-maven-plugin:0.25.2:build: org/apache/http/config/Lookup
[ERROR] -----------------------------------------------------
[ERROR] realm = plugin>io.fabric8:docker-maven-plugin:0.25.2

I have made sure httpcore-4.4.6.jar is part of maven repository.

Will appreciate your help on this as I can not proceed with chapter 18.

Thank you.