npm install: WARN on dependency

Question

I\'m using npm install cmd in my TFS build. I always get the following WARN:

npm WARN optional dep failed, continuing fsevents@0.3.1

How could I

Answer 1

Are you running on Windows or Linux? If so, fsevents cannot be installed, as it is an OSX-only package.

If you run npm with --loglevel=error, you should no longer see this or any other warnings. As far as I know, there is no way to selectively suppress warnings in npm.

Answer 2

The flag -s / --silent works good if you want to remove all warnings and errors:

npm install --silent

npm docs

Answer 3

npm install --no-optional prevents this warning