I\'m working in VS Code and started getting this error yesterday. All of my json files have this error, not just a few. If I remember right there was an update to the program
I was facing following issue with Angular 6:
Problems loading reference 'https://schemastore.azurewebsites.net/schemas/json/package.json': Unable to load schema from 'https://schemastore.azurewebsites.net/schemas/json/package.json': Unable to connect to https://schemastore.azurewebsites.net/schemas/json/package.json. Error: unable to get local issuer certificate
I added following properties at the end of the User Settings File and worked for me:
"http.proxy": "",
"http.proxyAuthorization": null,
"http.proxyStrictSSL": false