AADB2C90077: User does not have an existing session and request prompt parameter has a value of 'None'
问题 I have an Angular app that uses MSAL.js and when I try to get an access token I'm receiving the following error: AADB2C90077: User does not have an existing session and request prompt parameter has a value of 'None'. 回答1: I was passing the wrong scope value; I had a typo in my tenant name: this.userAgentApplication.acquireTokenSilent('https://{tenantname_with_typo}.onmicrosoft.com/webapi/read') 来源: https://stackoverflow.com/questions/47823447/aadb2c90077-user-does-not-have-an-existing-session