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I am trying to install appium using npm. Came accross a self-signed certificate SELF_SIGNED_CERT_IN_CHAIN error and its thrown for npm.

Does anyone observed & fix this before?

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1 Answer 1

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  • Go to https://registry.npmjs.org
  • Click the icon next to the URL in your browser’s address bar
  • Click Connection is secure, then click Certificate is valid
  • On the panel that appears, go to the Details tab, and click the Export… button on the bottom
  • Select *.crt as file type. This may be a single certificate or a certificate chain. Both works. Save the exported file locally
  • Now open a command prompt, and tell npm to use this certificate

npm config set cafile "C:\certs\whatever.crt"

Borrowed my answer from here

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