Don't auth with auth2 to Bigquery

Solution:

1. Create service account google cloud platform (GCP). I choose role "editor".
https://console.cloud.google.com/iam-admin/serviceaccounts
 
2. Go to service account and create key (json file)
a) In the Cloud Console, go to the Service Accounts page.
b) Go to Service accounts
c) Select a project.
d) Click the email address of the service account that you want to create a key for.
e) Click the Keys tab.
f) Click the Add key drop-down menu, then select Create new key.
h) Select JSON as the Key type and click Create.

3. From json-file delete symbol "enter" (#10#13)  - This is password.

4. In Power BI Service authentication method change to "basic" and  write email and password(json).

PS: Power BI Desktop have autorization about service account GCP too.

I take solution in telegram chat about Power BI.