while installing the edge-developer-training-backend proxy getting cert error

[klntyro]

Hi All, while doing this step "Deploy the edge-developer-training-backend proxy and dependencies", getting below error. Could you please help me? \setup> npm install npm ERR! code UNABLE_TO_GET_ISSUER_CERT_LOCALLY npm ERR! errno UNABLE_TO_GET_ISSUER_CERT_LOCALLY npm ERR! request to https://registry.npmjs.org/prompt failed, reason: unable to get local issuer certificate