On Step 5 of the HDP cluster install, where you assign the masters the Next button is greyed out. When the step5 page loads I receive an error (see screenshot). ambari-server.log shows: 09 Nov 2017 13:58:21,533 INFO [ambari-client-thread-33] StackAdvisorRunner:47 - Script=/var/lib/ambari-server/resources/scripts/stack_advisor.py, actionDirectory=/var/run/ambari-server/stack-recommendations/2, command=recommend-component-layout 09 Nov 2017 13:58:21,545 INFO [ambari-client-thread-33] StackAdvisorRunner:61 - Stack-advisor output=/var/run/ambari-server/stack-recommendations/2/stackadvisor.out, error=/var/run/ambari-server/stack-recommendations/2/stackadvisor.err 09 Nov 2017 13:58:21,786 INFO [ambari-client-thread-33] StackAdvisorRunner:69 - Stack advisor output files 09 Nov 2017 13:58:21,786 INFO [ambari-client-thread-33] StackAdvisorRunner:70 - advisor script stdout: StackAdvisor implementation for stack HDP, version 2.0.6 was loaded StackAdvisor implementation for stack HDP, version 2.1 was loaded StackAdvisor implementation for stack HDP, version 2.2 was loaded StackAdvisor implementation for stack HDP, version 2.3 was loaded StackAdvisor implementation for stack HDP, version 2.4 was loaded StackAdvisor implementation for stack HDP, version 2.5 was loaded StackAdvisor implementation for stack HDP, version 2.6 was loaded Returning HDP26StackAdvisor implementation ServiceAdvisor implementation for service SMARTSENSE was loaded 09 Nov 2017 13:58:21,787 INFO [ambari-client-thread-33] StackAdvisorRunner:71 - advisor script stderr: /usr/lib/python2.6/site-packages/ambari_jinja2/__init__.py:31: UserWarning: Module __main__ was already imported from /var/lib/ambari-server/resources/scripts/stack_advisor.py, but /usr/lib/python2.6/site-packages is being added to sys.path __version__ = __import__('pkg_resources') \ ... View more