使用Golang在Google工作表中出现错误

Question

when i follow the steps from https://developers.google.com/sheets/api/quickstart/go and run as go run quickstart.go

I got Error as below

2017/08/03 12:29:22 Unable to retrieve data from sheet. Get https://sheets.googleapis.com/v4/spreadsheets/14FXalPXVUHZ2SyNBUWJpfSzUSSimYYIR5mUU36r6_BQ/values/A%3AC?alt=json: oauth2: cannot fetch token: 401 Unauthorized Response: { "error" : "unauthorized_client" } exit status 1

Answer 1

We have to delete credential file in our system because after 1 day or certain time access token of oauth2 protocol got expired.For new access token,you need to delete credential file and run program again.