[ovirt-users] hosted-engine some errors

[dhy336 at sina.com]

Hi,  I deploy hosted engine by hosted-engine --deploy,  but it go wrong . I do not know how to debug? thanks.
[ INFO  ] TASK [Clean /etc/hosts for the engine VM][ INFO  ] skipping: [localhost][ INFO  ] TASK [Copy /etc/hosts back to the engine VM][ INFO  ] skipping: [localhost][ INFO  ] TASK [Clean /etc/hosts on the host][ ERROR ] fatal: [localhost]: FAILED! => {"msg": "The task includes an option with an undefined variable. The error was: list object has no element 0\n\nThe error appears to have been in '/usr/share/ovirt-hosted-engine-setup/ansible/create_target_vm.yml': line 265, column 5, but may\nbe elsewhere in the file depending on the exact syntax problem.\n\nThe offending line appears to be:\n\n    tags: [ 'skip_ansible_lint' ]\n  - name: Clean /etc/hosts on the host\n    ^ here\n\nexception type: <class 'ansible.errors.AnsibleUndefinedVariable'>\nexception: list object has no element 0"}[ ERROR ] Failed to execute stage 'Closing up': Failed executing ansible-playbook[ INFO  ] Stage: Clean up[ INFO  ] Cleaning temporary resources[ INFO  ] TASK [Gathering Facts][ INFO  ] ok: [localhost][ INFO  ] TASK [Remove local vm dir][ INFO  ] changed: [localhost][ INFO  ] Generating answer file '/var/lib/ovirt-hosted-engine-setup/answers/answers-20180425125000.conf'[ INFO  ] Stage: Pre-termination[ INFO  ] Stage: Termination[ ERROR ] Hosted Engine deployment failed: please check the logs for the issue, fix accordingly or re-deploy from scratch.          Log file is located at /var/log/ovirt-hosted-engine-setup/ovirt-hosted-engine-setup-20180425043425-savh7b.log
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