Google API OAuth2, Service Account, “error” : “invalid_grant”

Question

I\'m trying to use service account to sync calendars from Dynamics CRM software to Google. During this I faced lack of documentation on google API for .net, especially regar

Answer 1

i was having same problem it was working fine on remote server but on the local server i got to that error, long story short after hours of headache i found out problem was from my system clock,just go through these step

1. Click on the clock in your system

• This will bring up the calendar and time

2. Click Change date and time settings...

• The Date and Time dialog will appear

3. Click on the Internet Time tab

4. Click Change settings

• The Internet Time Settings dialog will appear.

then finally update your clock with one of the time servers