Errors began after updating to Angular-Cli V10.1.0. Initial problems I encountered: The ng command was not working. I found that core dependencies were missing:
xlabs
php-7
chunks
threepenny-gui
polylang
nscoding
sass-variables
httpconnection
utf8-decode
sanitizer
navigation-timing-api
zend-framework
wicked-pdf
carddav
android-kernel
ion-auth
mod-lua
oracle-rdb
wavesurfer.js
non-printable
color-depth
swift-framework
delivery-status-notification
weatherstack
epmd
loadoptions
intellicode
cat.net
resolveactivity
nrql