Note: This is a question that may arise for current users of Lavastorm who are migrating over to Dataverse.
When Lavastorm runs locally, it occupies port 7721 by default.
To ensure that a new installation of Dataverse does not conflict with a pre-existing installation of Lavastorm, start Lavastorm prior to initiating the Dataverse installation.
When the Dataverse installation detects an actively running instance of Lavastorm, you will be prompted to manually specify an alternate port. This will ensure that Lavastorm and Dataverse will not occupy the same port.