Bring your towel and join one of the fastest growing data communities. Welcome to our second-generation open source orchestration platform, a completely rethought approach to dataflow automation.

Prefect Community

I have started using *prefect-sqlalchemy but getting following error while establishing connection with Postgres using following command*

```def setdatabaseconnection():
    connector = SqlAlchemyConnector(
        connection_info=ConnectionComponents(
            driver=SyncDriver.POSTGRESQL_PSYCOPG2,
            username="postgres",
            password="",
            host="localhost",
            port=5432,
            database="claimshero_dev",
        )
    )

    connector.save("CH_DATABASE_CONNECTION")```
Error : pydantic.error_wrappers.ValidationError: 2 validation errors for BlockDocumentCreate
name
  name must only contain lowercase letters, numbers, and dashes (type=value_error)
__root__
  Names must be provided for block documents. (type=value_error)

hi! Can you try changing:
```connector.save("CH_DATABASE_CONNECTION")```
to
```connector.save("ch-database-connection")```


Thanks <@U02EBC3N05N>

One more question, We are using *WaitOnContainer* from *prefect.tasks.docker* in Prefect 1, to wait for a container until it finish its work. In Prefect 2 we use *prefect_docker.containers* but, it doesn't have function to wait for a container to finish its work. Is this functionality not implemented in Prefect 2.0? Any workaround?