Mongo exit code 48, Windows 10

On startup of meteor in simple-todos I receive and error after
=> Started Proxy
Unexpected mongo exit code 48. Restarting.
Unexpected mongo exit code 48. Restarting.
Unexpected mongo exit code 48. Restarting.
Can’t start Mongo server.
MongoDB exited because its port was closed, or was already take by a previous instance of MongoDB

Check for other processes listening on port 3001
or other Meteor instances running in the same project.

Meteor was the first install of Mongo that I am aware of on this machine.

Since it is an example app, type meteor reset and it will reset (delete and re-create) your database. Then try again.