java.util.concurrent.ExecutionException: com.spotify.docker.client.shaded.javax.ws.rs.ProcessingException:

I am getting below error when trying to build the repo..

Caused by: com.spotify.docker.client.shaded.javax.ws.rs.ProcessingException: org.apache.http.conn.HttpHostConnectException: Connect to localhost:2375 [localhost/127.0.0.1, localhost/0:0:0:0:0:0:0:1] failed: Connection refused: connect
    at org.glassfish.jersey.apache.connector.ApacheConnector.apply (ApacheConnector.java:481)
    at org.glassfish.jersey.apache.connector.ApacheConnector$1.run (ApacheConnector.java:491)
    at java.util.concurrent.Executors$RunnableAdapter.call (Executors.java:511)
    at java.util.concurrent.FutureTask.run (FutureTask.java:266)
    at jersey.repackaged.com.google.common.util.concurrent.MoreExecutors$DirectExecutorService.execute (MoreExecutors.java:299)
    at java.util.concurrent.AbstractExecutorService.submit (AbstractExecutorService.java:112)
    at jersey.repackaged.com.google.common.util.concurrent.AbstractListeningExecutorService.submit (AbstractListeningExecutorService.java:50)
    at jersey.repackaged.com.google.common.util.concurrent.AbstractListeningExecutorService.submit (AbstractListeningExecutorService.java:37)
    at org.glassfish.jersey.apache.connector.ApacheConnector.apply (ApacheConnector.java:487)
    at org.glassfish.jersey.client.ClientRuntime$2.run (ClientRuntime.java:177)
    at org.glassfish.jersey.internal.Errors$1.call (Errors.java:271)
    at org.glassfish.jersey.internal.Errors$1.call (Errors.java:267)
    at org.glassfish.jersey.internal.Errors.process (Errors.java:315)
    at org.glassfish.jersey.internal.Errors.process (Errors.java:297)
    at org.glassfish.jersey.internal.Errors.process (Errors.java:267)
    at org.glassfish.jersey.process.internal.RequestScope.runInScope (RequestScope.java:340)
    at org.glassfish.jersey.client.ClientRuntime$3.run (ClientRuntime.java:209)
    at java.util.concurrent.Executors$RunnableAdapter.call (Executors.java:511)
    at java.util.concurrent.FutureTask.run (FutureTask.java:266)
    at java.util.concurrent.ThreadPoolExecutor.runWorker (ThreadPoolExecutor.java:1149)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run (ThreadPoolExecutor.java:624)
    at java.lang.Thread.run (Thread.java:748)

[huanwei]

refer #29