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:
mellon
constant-expression
gnucash
is-same
jquery-events
postgresql-triggers
django-simple-history
aws-elasticsearch
android-gnss
yandex-mapkit
vpd
dojo-1.6
leap-motion
agda
fernet
modulus
move-semantics
oracle-apex-19.2
zio-json
oracle-fdw
ctad
uitraitcollection
node-amqp
imagemapster
aws-sdk-mock
draggable
hhvm
sessionfactory
uploadcare
filestack