Github user mmiklavc commented on the issue:
https://github.com/apache/metron/pull/857
A couple notes for the community - if your node/npm versions are out of
date and you've already built the project, you'll run into trouble with
versions not matching against the expected node version, e.g. `Node Sass could
not find a binding for your current environment: OS X 64-bit with Node.js 9.x`.
I deleted the node_modules directory entirely, `rm -r
metron-alerts/node_modules`, re-ran the install, `npm install`, and then the
start server script ran successfully. Just to note, the server script does not
background the process, so you'll need to manually do that or use 2 windows to
run the e2e tests.
---
