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:
cloveretl
pyabc
mqttnet
sieve-language
maintenance-plan
preventdefault
device-driver
openfx
bootstrap-native
listtile
dart-flutter-redux
dynamic-type-feature
rust-criterion
uiveri5
unidecoder
fuse.js
start-process
forward-declaration
eucalyptus
android-native-library
front-camera
kafka-rest
netflix
java-failsafe
jmeter-plugins
system.net.websockets
cppwinrt
p4python
android-ktx
independent-set