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  1. Jenkins
  2. JENKINS-50805

Jenkins Blue Ocean won't show Agent when creating a Pipeline

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      Description

      I'm new to Blue Ocean, and I'm following the tutorial which tells me to run:

      docker run \
      --rm \
      -u root \
      -p 8080:8080 \
      -v jenkins-data:/var/jenkins_home \
      -v /var/run/docker.sock:/var/run/docker.sock \
      -v "$HOME":/home \
      jenkinsci/blueocean

      It fired up the docker instance, I got to the Blue Ocean screen, Clicked on create a new pipeline, set the GitHub token, Etc.

      Update: this also happens when running Jenkins from java directly on my laptop, and installing Ocean Blue plugin:

      java -jar jenkins.war --httpPort=8080

      Now I'm at the part where you select the Agent, but mine has no agent:

      Moreover, if I click the save button and then "save & run" it gets stuck and the docker container output throws:

      WARNING: Error while serving http://localhost:8080/blue/rest/pipeline-metadata/agentMetadata
      java.lang.reflect.InvocationTargetException
      ... <stack trace here> ...
      
      Caused by: java.lang.NoSuchMethodError: org.jenkinsci.plugins.pipeline.modeldefinition.agent.DeclarativeAgentDescriptor.all()Lhudson/ExtensionList;
      

       
      I posted this problem on Stack Overflow but somebody said this might be a new bug. Hope this report helps.

       

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              Assignee:
              Unassigned Unassigned
              Reporter:
              reijis2 Christopher Francisco
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                Updated:
                Resolved: