VSC unable to watch for file changes in this large workspace Linux

solved.txt

REFERENCE:
https://stackoverflow.com/questions/50901127/vsc-unable-to-watch-for-file-changes-in-this-large-workspace-weird

Open a new terminal.
cat /proc/sys/fs/inotify/max_user_watches (might be a number 8k+)
now (a) for vim-Editor

(a) sudo vim /etc/sysctl.conf
(a) go all the way down and add a new line with: fs.inotify.max_user_watches=524288 (make sure you DONT have a # in front of the command)
(a) type :wq! and press enter
or (b) for nano-Editor (thanks to @bradrar)

(b) sudo nano /etc/sysctl.conf

(b) go all the way down and add a new line with: fs.inotify.max_user_watches=524288 (make sure you DONT have a # in front of the command)

(b) type ctrl + x, type y and press enter
type sudo sysctl -p
type again: cat /proc/sys/fs/inotify/max_user_watches (should be 500k+ now)