401 Unauthorized

[gabrielHneini]

Sample Name

Gmail Quickstart

Expected Behavior

Connection OK

Actual Behavior

401 Unauthorized

Specifications

• Java version 8
• OS (Mac)

Tried the Quickstart Gmail api and used the code posted in the documentation but I kept having Exception in thread "main" com.google.api.client.auth.oauth2.TokenResponseException: 401 Unauthorized

[lecaros]

check if you have any token saved. If you're using Quickstart, it should be under tokens folder.