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 delete this warning?

score 78 · Accepted Answer · answered Dec 30 '14 at 12:28

78

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.

answered Dec 30 '14 at 12:28

Sam Mikes

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Thanks for your help. I aim to hide this warn, cause TFS interpret this as an error. – Felix_Billon Dec 30 '14 at 13:13
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OK, well somewhere in one of your TFS scripts, something is running an `npm install`. you need to change that to `npm --logevel=error install`, and that will suppress the WARN message and Team Foundation Server will stop complaining about it. – Sam Mikes Dec 31 '14 at 15:14
After waiting on angular 4 to install for an hour, I cancelled it, used this parameter, and it installed in about 10 seconds. – omikes Mar 21 '18 at 19:16

Alynva · Answer 2 · 2021-09-04T12:30:10.927

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

npm install --silent

npm docs

edited Sep 04 '21 at 12:30

answered Sep 15 '19 at 15:20

Alynva

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score 5 · Answer 3 · edited Feb 08 '20 at 08:03

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npm install --no-optional prevents this warning

edited Feb 08 '20 at 08:03

Paolo

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answered Jun 25 '19 at 20:40

Angus

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npm install: WARN on dependency

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