Trying to deploy a web project for the first time.

I made a certificate, then clicked run as web application with my phone plugged in. I get back the following.

Installing the package failed.

Error code: FATAL_ERROR

Error message: 

Command: /usr/bin/pkgcmd -i -q -t wgt -p “/opt/usr/apps/tmp/testing.wgt”

Management: Installation or uninstallation is not working temporarily.

I looked through the getting started docs and don’t think I missed any steps. Anyone have an idea what this might be?