I'm trying to upgrade my versino of typescript using npm. I tried running this command
localhost:Pastebin davea$ npm install typescript/2.8.4 --save-dev
The authenticity of host 'github.com (192.30.253.113)' can't be established.0d71
RSA key fingerprint is SHA256:nThbg6kXUpJWGl7E1IGOCspRomTxdCARLviKw6E5SY8.
⸨░░░░░░░░░░░░░░░░░░⸩ ⠧ rollbackFailedOptional: verb npm-session b2dfb7a6e65c0d71
But get the error you see above. I'm unclear why authenticity of github.com can't be established. The site is up from what I can tell. Not sure how to approach this problem.