i just want to understand how to define a source if it doesn't exist and a destination if it doesn't exist and run it

so I went and did the following: 1. Created a new project with

dagster project scaffold --name airbyte_project

2. Added below code to assets.py file within

airbyte_project

3. Run the check you mentioned above

dagster-airbyte check --module airbyte_project.assets:reconciler

The above check failed with the following error message:

AttributeError: module 'airbyte_project.assets' has no attribute 'reconciler'

Also, if I run dagster dev at the root directory my code fails with this error:

Error loading repository location airbyte_project:ValueError: Airbyte connections are not in sync with provided configuration, diff:

+ cereals-csv:

I am using the example you provided , just not sure how to run it

from dagster import (
    ScheduleDefinition,
    define_asset_job,
    AssetSelection,
    repository,
    build_asset_reconciliation_sensor,
)
from dagster_airbyte import (
    AirbyteManagedElementReconciler,
    load_assets_from_connections,
)
from dagster_airbyte.managed.generated.sources import FileSource
from dagster_airbyte.managed.generated.destinations import LocalJsonDestination
from dagster_airbyte import AirbyteConnection, AirbyteSyncMode
from dagster_airbyte import airbyte_resource


airbyte_instance = airbyte_resource.configured({"host": "localhost", "port": "8000"})

cereals_csv_source = FileSource(
    name="cereals-csv",
    url="<https://docs.dagster.io/assets/cereal.csv>",
    format="csv",
    provider=FileSource.HTTPSPublicWeb(),
    dataset_name="cereals",
)

local_json_destination = LocalJsonDestination(
    name="local-json", destination_path="/local/cereals_out.json"
)

cereals_connection = AirbyteConnection(
    name="download-cereals",
    source=cereals_csv_source,
    destination=local_json_destination,
    stream_config={"cereals": AirbyteSyncMode.full_refresh_overwrite()},
)


airbyte_reconciler = AirbyteManagedElementReconciler(
    airbyte=airbyte_instance,
    connections=[cereals_connection],
)


# airbyte_reconciler.apply()


# load airbyte connection from above pythonic definitions
airbyte_assets = load_assets_from_connections(
    airbyte=airbyte_instance,
    connections=[cereals_connection],
    key_prefix=["cereals"],
)

update_sensor = build_asset_reconciliation_sensor(
    name="update_sensor", asset_selection=AssetSelection.all()
)

my_job = define_asset_job(
    "my_job", AssetSelection.groups("download-cereals").downstream()
)

my_job_schedule = ScheduleDefinition(
    name="my_job_schedule", job=my_job, cron_schedule="*/30 * * * *"
)


@repository()
def assets_modern_data_stack():
    return [airbyte_assets, my_job, my_job_schedule]

The source/destination and connection gets created fine in Airbyte. It's just cannot seem to get dagster to run this workflow