Error when installing node-red-node-serialport on windows

General
1 
 npm i node-red-node-serialport

I am using windows to run Node Red.
node --version 
v14.15.1
npm --version
6.14.9

The following error was thrown 
find VS
configure error
stack
2

Hi & welcome.

You need to install build tools.

npm install --global windows-build-tools

then try again.

3

It wrote npm WARN deprecated. Will it be a problem in the future when there is an update?

4

what part wrote "npm WARN deprecated"?

Anyhow, regardless of the warning, does it now work? Please feedback for future readers with same issue.

5

It works as expected. Thanks. But what is the theory behind it?

6

Some nodejs modules need to compile native code to work on specific OS/hardware. Serialport is one of those.