Hi Yang,
Thank you for reaching us out. I am Sherwin from Google Ads API support team. I hope that you are doing well today.
The error that you receive is not on the list of our document. Is it the first time you will use the Google Ads API? If yes, please follow the instructions on how to set your Java client library to use Google Ads API by clicking on this
link. If this is not your first time to use Google Ads API, what we can do is to advise you to reach out to the
Googleads Java Github issue tracker.
Kind regards,
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| Sherwin Vincent |
| Google Ads API Team |
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