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Swarm Installer displays an error as the installer finds these VMs already exist if the user tries to install without deleting VMs that were created before aborting the procedure.
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If you misconfigured the netmask during SCS installation step, you will need to restart the pre-launcher installation from the beginning.
If you misconfigured any static IP address , for example you set the gateway storage IP to the elasticsearch storage IP, then ansible will deploy the gateway role on the elasticsearch VM and you will need to re-deploy the entire installation.