这个错误通常是由于BigQuery的权限设置导致的。在Airflow中使用BigQueryHook时，确保你所用的GCP账户有BigQuery的管理权限。以下是正确设置BigQuery Hook的代码示例：

from airflow.contrib.hooks.bigquery_hook import BigQueryHook
from airflow.models import DAG
from airflow.operators.python_operator import PythonOperator
import datetime

default_args = {
    "owner": "airflow",
    "start_date": datetime.datetime(2021, 1, 1)
}

dag = DAG("example_dag", default_args=default_args)

def create_bigquery_table():
    # 这里替换为你的GCP项目ID
    project_id = "your_project_id"
    # 这里替换为你的BigQuery数据集ID
    dataset_id = "your_dataset_id"
    # 这里替换为你的BigQuery Table ID
    table_id = "your_table_id"

    sql_create_table = """
        CREATE TABLE your_project_id.your_dataset_id.your_table_id (
            column1 STRING,
            column2 INTEGER,
            column3 FLOAT
        )
    """

    bq_hook = BigQueryHook(use_legacy_sql=False, project_id=project_id)

    conn = bq_hook.get_conn()

    cursor = conn.cursor()

    cursor.execute(sql_create_table)

    cursor.close()

    conn.close()

create_bigquery_table_task = PythonOperator(task_id="create_bigquery_table", python_callable=create_bigquery_table, dag=dag)