After deleting the "message:x" database keys the upgrade completed without error.
Upon startup though I am getting an error that is keeping NodeBB from starting:
$ ./nodebb log
Type Ctrl-C to exit
NodeBB v1.0.0 Copyright (C) 2013-2014 NodeBB Inc.
This program comes with ABSOLUTELY NO WARRANTY.
This is free software, and you are welcome to redistribute it under certain conditions.
For the full license, please visit: http://www.gnu.org/copyleft/gpl.html
Clustering enabled: Spinning up 1 process(es).
4/3 14:13  - info: Time: Fri Mar 04 2016 14:13:43 GMT-0700 (MST)
4/3 14:13  - info: Initializing NodeBB v1.0.0
[outdated] nodebb-plugin-soundpack-default installed v0.1.5, package.json requires 0.1.6
4/3 14:13  - warn: One or more of NodeBB's dependent packages are out-of-date. Please run the following command to update them:
4/3 14:13  - warn: ./nodebb upgrade
[cluster] Child Process (17972) has exited (code: 0, signal: null)
I ran the upgrade again but still end up with this error upon starting. I do not recall installing the
nodebb-plugin-soundpack-default plugin. I believe it is native to NodeBB.
Help please on what to look at next.