When I run `npm install`, it returns with `ERR! code EINTEGRITY` (npm 5.3.0)

Question

I am getting this error while running sudo npm install. On my server, npm was installed earlier. I\'ve tried to delete the package-lock.json file,

Answer 1

all solutions failed for me till i checked router settings; it was set to only IPV4.. i changed and put ipv4v6 and all is working fine now.

Answer 2

Updating .npmrc and the registry to https:// worked for me

registry=https://registry.npmjs.org/

Answer 3

You should check Connection-specific DNS Suffix when type “ipconfig” or “ifconfig” in terminal

Answer 4

Before i was running this command

npm install typescript -g

after changing the command it worked perfectly.

npm install -g typescript

Answer 5

Delete package-lock.json file and then try to install

Answer 6

The issue was indeed in package-lock.json, and after replacing it with a working version from another branch it worked.

What's interesting is seeing the diff:

So there really is some integrity checksum in the package-lock.json to verify that the file you are downloading hasn't been tampered with. It's just that somehow the integrity checksum was replaced in our package-lock.json with a SHA1 instead of a SHA-512 checksum. I have no idea how this happened.

In case you don't have a working version in another branch. Consider the message

npm ERR! code EINTEGRITY
npm ERR!
  sha512-MKiLiV+I1AA596t9w1sQJ8jkiSr5+ZKi0WKrYGUn6d1Fx+Ij4tIj+m2WMQSGczs5jZVxV339chE8iwk6F64wjA==
integrity checksum failed when using sha512: wanted
  sha512-MKiLiV+I1AA596t9w1sQJ8jkiSr5+ZKi0WKrYGUn6d1Fx+Ij4tIj+m2WMQSGczs5jZVxV339chE8iwk6F64wjA==
but got
  sha512-WXI95kpJrxw4Nnx8vVI90PuUhrQjnNgghBl5tn54rUNKZYbxv+4ACxUzPVpJEtWxKmeDwnQrzjc0C2bYmRJVKg==
. (65117 bytes)

Find the package by the first two checksums in package-lock.json:

sha512-MKiLiV+I1AA596t9w1sQJ8jkiSr5+ZKi0WKrYGUn6d1Fx+Ij4tIj+m2WMQSGczs5jZVxV339chE8iwk6F64wjA==

and put the third checksum into its "integrity" field:

sha512-WXI95kpJrxw4Nnx8vVI90PuUhrQjnNgghBl5tn54rUNKZYbxv+4ACxUzPVpJEtWxKmeDwnQrzjc0C2bYmRJVKg==

A more detailed description is here.