Unable to use Ionic Studio

Trying to Open an existing project or create a new project in Ionic Studio and getting this error:
Error: self signed certificate in certificate chain

at TLSSocket.onConnectSecure (_tls_wrap.js:1051:34)
at TLSSocket.emit (events.js:189:13)
at TLSSocket._finishInit (_tls_wrap.js:633:8)

I can use the Ionic CLI without any problem (used this command: set NODE_TLS_REJECT_UNAUTHORIZED=0). ut not sure how to set NODE_TLS_REJECT_UNAUTHORIZED value in Studio.