UPDATE: Adding a 2019; the discovery/runner integration mechanism is same as per 2017 & 2015, so the key things that can go wrong are the
circular-reference
docx2pdf
mediaelement.js
telnetlib
react-refresh
window-object
polkadot
xcode-build-settings
microkernel
createprocess
data-virtualization
native-ads
share-extension
agora.io
representation
powerapps
agda-stdlib
power-apps-custom-connector
onkeyup
helidon
python-jose
supertest
robobrowser
node-pdfkit
florist
tribe-event-tickets
android-jetpack-compose-material3
avaya
ng2-smart-table
elm