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https://issues.apache.org/jira/browse/AMBARI-1588?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13596879#comment-13596879
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subin m commented on AMBARI-1588:
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I faced the same issue.
I noticed that on one of my nodes, i am unable to upgarde the agent to 1.2.1.
I removed that node and now i am able to see the Nest button
> Next button is disabled after successful confirm hosts in 1.2.1
> ---------------------------------------------------------------
>
> Key: AMBARI-1588
> URL: https://issues.apache.org/jira/browse/AMBARI-1588
> Project: Ambari
> Issue Type: Bug
> Affects Versions: 1.2.1
> Reporter: Dustine Rene Bernasor
> Assignee: Yusaku Sako
> Attachments: ambari-agent.tar.gz, ambari-server.tar.gz
>
>
> I upgraded to 1.2.1 and did a reset (again), doing everything for scratch.
> This time, when I reach the Confirm Hosts step, everything is successful
> but the Next button is disabled and I cannot proceed to the next step.
> There is an error according to the Chrome dev tools:
> Uncaught TypeError: Cannot read property 'paths' of null app.js:8969
> (anonymous function)app.js:8969
>
> App.WizardStep3Controller.Em.Controller.extend.parseWarningsapp.js:8960
> $.ajax.successapp.js:8767
> ovendor.js:91
> p.fireWithvendor.js:91
> wvendor.js:93
> d
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