Hi, i'am trying to build a new source connector using low-code CDK, but when i run acceptance test, i got this error:

--------------------------------------------------------------------------------------------------------------------------- Captured log call ----------------------------------------------------------------------------------------------------------------------------
ERROR    root:connector_runner.py:153 Docker container failed, code 1, error:
{"type": "TRACE", "trace": {"type": "ERROR", "emitted_at": 1666465401345.998, "error": {"message": "Something went wrong in the connector. See the logs for more details.", "internal_message": "HTTPSConnectionPool(host='<http://api.mailjet.com|api.mailjet.com>', port=443): Max retries exceeded with url: /v3/REST/contactslist (Caused by NewConnectionError('<urllib3.connection.HTTPSConnection object at 0x7f98649740a0>: Failed to establish a new connection: [Errno -2] Name does not resolve'))", "stack_trace": "Traceback (most recent call last):\n  File \"/usr/local/lib/python3.9/site-packages/urllib3/connection.py\", line 174, in _new_conn\n    conn = connection.create_connection(\n  File \"/usr/local/lib/python3.9/site-packages/urllib3/util/connection.py\", line 72, in create_connection\n    for res in socket.getaddrinfo(host, port, family, socket.SOCK_STREAM):\n  File \"/usr/local/lib/python3.9/socket.py\", line 954, in getaddrinfo\n    for res in _socket.getaddrinfo(host, port, family, type, proto, flags):\nsocket.gaierror: [Errno -2] Name does not resolve\n\nDuring handling of the above exception, another exception occurred:\n\nTraceback (most recent call last):\n  File \"/usr/local/lib/python3.9/site-packages/urllib3/connectionpool.py\", line 703, in urlopen\n    httplib_response = self._make_request(\n  File \"/usr/local/lib/python3.9/site-packages/urllib3/connectionpool.py\", line 386, in _make_request\n    self._validate_conn(conn)\n  File \"/usr/local/lib/python3.9/site-packages/urllib3/connectionpool.py\", line 1042, in _validate_conn\n    conn.connect()\n  File \"/usr/local/lib/python3.9/site-packages/urllib3/connection.py\", line 358, in connect\n    self.sock = conn = self._new_conn()\n  File \"/usr/local/lib/python3.9/site-packages/urllib3/connection.py\", line 186, in _new_conn\n    raise NewConnectionError(\nurllib3.exceptions.NewConnectionError: <urllib3.connection.HTTPSConnection object at 0x7f98649740a0>: Failed to establish a new connection: [Errno -2] Name does not resolve\n\nDuring handling of the above exception, another exception occurred:\n\nTraceback (most recent call last):\n  File \"/usr/local/lib/python3.9/site-packages/requests/adapters.py\", line 489, in send\n    resp = conn.urlopen(\n  File \"/usr/local/lib/python3.9/site-packages/urllib3/connectionpool.py\", line 787, in urlopen\n    retries = retries.increment(\n  File \"/usr/local/lib/python3.9/site-packages/urllib3/util/retry.py\", line 592, in increment\n    raise MaxRetryError(_pool, url, error or ResponseError(cause))\nurllib3.exceptions.MaxRetryError: HTTPSConnectionPool(host='<http://api.mailjet.com|api.mailjet.com>', port=443): Max retries exceeded with url: /v3/REST/contactslist (Caused by NewConnectionError('<urllib3.connection.HTTPSConnection object at 0x7f98649740a0>: Failed to establish a new connection: [Errno -2] Name does not resolve'))\n\nDuring handling of the above exception, another exception occurred:\n\nTraceback (most recent call last):\n  File \"/airbyte/integration_code/main.py\", line 13, in <module>\n    launch(source, sys.argv[1:])\n  File \"/usr/local/lib/python3.9/site-packages/airbyte_cdk/entrypoint.py\", line 131, in launch\n    for message in source_entrypoint.run(parsed_args):\n  File \"/usr/local/lib/python3.9/site-packages/airbyte_cdk/entrypoint.py\", line 122, in run\n    for message in generator:\n  File \"/usr/local/lib/python3.9/site-packages/airbyte_cdk/sources/abstract_source.py\", line 127, in read\n    raise e\n  File \"/usr/local/lib/python3.9/site-packages/airbyte_cdk/sources/abstract_source.py\", line 113, in read\n    yield from self._read_stream(\n  File \"/usr/local/lib/python3.9/site-packages/airbyte_cdk/sources/abstract_source.py\", line 182, in _read_stream\n    for record in record_iterator:\n  File \"/usr/local/lib/python3.9/site-packages/airbyte_cdk/sources/abstract_source.py\", line 285, in _read_full_refresh\n    for record in records:\n  File \"/usr/local/lib/python3.9/site-packages/airbyte_cdk/sources/declarative/declarative_stream.py\", line 115, in read_records\n    for record in self.retriever.read_records(sync_mode, cursor_field, stream_slice, stream_state):\n  File \"/usr/local/lib/python3.9/site-packages/airbyte_cdk/sources/declarative/retrievers/simple_retriever.py\", line 348, in read_records\n    for r in records_generator:\n  File \"/usr/local/lib/python3.9/site-packages/airbyte_cdk/sources/streams/http/http.py\", line 415, in read_records\n    response = self._send_request(request, request_kwargs)\n  File \"/usr/local/lib/python3.9/site-packages/airbyte_cdk/sources/streams/http/http.py\", line 342, in _send_request\n    return backoff_handler(user_backoff_handler)(request, request_kwargs)\n  File \"/usr/local/lib/python3.9/site-packages/backoff/_sync.py\", line 105, in retry\n    ret = target(*args, **kwargs)\n  File \"/usr/local/lib/python3.9/site-packages/backoff/_sync.py\", line 105, in retry\n    ret = target(*args, **kwargs)\n  File \"/usr/local/lib/python3.9/site-packages/airbyte_cdk/sources/streams/http/http.py\", line 289, in _send\n    response: requests.Response = self._session.send(request, **request_kwargs)\n  File \"/usr/local/lib/python3.9/site-packages/requests/sessions.py\", line 701, in send\n    r = adapter.send(request, **kwargs)\n  File \"/usr/local/lib/python3.9/site-packages/requests/adapters.py\", line 565, in send\n    raise ConnectionError(e, request=request)\nrequests.exceptions.ConnectionError: HTTPSConnectionPool(host='<http://api.mailjet.com|api.mailjet.com>', port=443): Max retries exceeded with url: /v3/REST/contactslist (Caused by NewConnectionError('<urllib3.connection.HTTPSConnection object at 0x7f98649740a0>: Failed to establish a new connection: [Errno -2] Name does not resolve'))\n", "failure_type": "system_error"}}}

@Marcos Marx (Airbyte) turned this thread into Zendesk ticket 3056 to ensure timely resolution!

Great to hear!