Dart SDK not null safe

[vinckr]

Report from amorevino developer:

Describe the bug

We have an SDK for Dart: https://pub.dev/packages/ory_client

This is created with Dart version 2.0. Dart support for null safety was added in 2.8 (https://dart.dev/null-safety).

This leads to errors when developing Flutter apps.

To Reproduce

https://pub.dev/packages/ory_client/score

Package is not null safe

Because:

    package:ory_client/api.dart where package:ory_client/api.dart is opting out from null safety.

Expected behavior

Package is null safe.

Additional context

I do not have experience using the package, so let me know if this is a trivial error or can be worked around easily.

[aeneasr]

Could you @ the dev here please?

[zepatrik]

I assume @bennihz or @sashatalalasha?

[vinckr]

Yes it was @sashatalalasha who reported the issue, sorry missed that.

[aeneasr]

@sashatalalasha have you been able to use the Dart SDK at all or does this prevent you from embedding it? Also, what version of the SDK have you been using?

Unfortunately the tool we use to generate the Dart code generates really bad code that sometimes doesn’t even compile. I have raised an issue in our pipeline on this (ory/sdk#109) and also opened/track several issues in openapi-generator:

• [REQ][dart] Dart full OAS3 support OpenAPITools/openapi-generator#8179
• Impossible to create Dart client with Github spec OpenAPITools/openapi-generator#7850

I would suggest that when I am back next week we sit down together and try out the different options for Dart generation available and choose the least terrible one 😅

Alternatively we could also use the REST API in raw format for now. What do you think?

[sashatalalasha]

@aeneasr I can't build the app as it constantly throws errors. The SDK version is 2.13.4.

Actually, I didn't plan to use the ory client package as Benni is working on a backend that will serve as a mediator between the app and Kratos. Just wanted to check how direct communication works :)

Sure we can look for a good code generator together when you're back.

Thanks!

[aeneasr]

Ah ok! That works also :) If any of you both need help just drop an issue or GitHub discussion here!

It would also be great if we could sit together for an hour or so to look at your use of Dart and how we could get our SDKs up to speed as we have flows for native apps :)

[provokateurin]

ory/sdk#109 (comment) I want to fix this issue, as it would be great to have a correctly working dart generator.

[hpadrao]

Any news?

[provokateurin]

I haven't tried using ory with a dart client in a while, but i've successfully used the dart2 generator from the openapi-generator 6.0.x branch. It has null-safety and seems to be working just fine. It is not released yet, so I don't know if ory wants to use it, but I'd say better use (maybe) unstable than outright broken code.

[aeneasr]

Oh nice! Yeah, 6.0x is still pretty broken I think but as soon as it becomes stable we wil definitely switch to it. Maybe we can also use individual versions for each SDK type, would require some refactoring though.

[aeneasr]

We have updated to the latest versions - not sure if that brings some improvements already?

[allenkaplan]

We have updated to the latest versions - not sure if that brings some improvements already?

FWIW still getting the following 5 months later :(

flutter run output

Running Gradle task 'assembleDebug'...
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/api.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/api_client.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/api_helper.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/api_exception.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/auth/authentication.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/auth/api_key_auth.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/auth/oauth.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/auth/http_basic_auth.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/auth/http_bearer_auth.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/api/metadata_api.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/api/v0alpha1_api.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/admin_create_identity_body.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/admin_create_self_service_recovery_link_body.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/admin_update_identity_body.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/authenticate_ok_body.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/container_change_response_item.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/container_create_created_body.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/container_top_ok_body.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/container_update_ok_body.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/container_wait_ok_body.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/container_wait_ok_body_error.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/error_response.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/generic_error.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/graph_driver_data.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/health_not_ready_status.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/health_status.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/id_response.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/identity.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/identity.dart:128:9: Error: Expected ',' before this.
        id: json[r'id'],
        ^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/identity_credentials.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/identity_state.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/image_delete_response_item.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/image_summary.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/inline_response200.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/inline_response2001.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/inline_response503.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/json_error.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/meta.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/plugin.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/plugin_config.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/plugin_config_args.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/plugin_config_interface.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/plugin_config_linux.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/plugin_config_network.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/plugin_config_rootfs.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/plugin_config_user.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/plugin_device.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/plugin_env.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/plugin_interface_type.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/plugin_mount.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/plugin_settings.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/port.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/recovery_address.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/self_service_error.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/self_service_login_flow.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/self_service_logout_url.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/self_service_recovery_flow.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/self_service_recovery_flow_state.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/self_service_recovery_link.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/self_service_registration_flow.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/self_service_settings_flow.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/self_service_settings_flow_state.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/self_service_verification_flow.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/self_service_verification_flow_state.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/service_update_response.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/session.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/settings_profile_form_config.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/submit_self_service_login_flow_body.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/submit_self_service_login_flow_with_oidc_method_body.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/submit_self_service_login_flow_with_password_method_body.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/submit_self_service_logout_flow_without_browser_body.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/submit_self_service_recovery_flow_body.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/submit_self_service_recovery_flow_with_link_method_body.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/submit_self_service_registration_flow_body.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/submit_self_service_registration_flow_with_oidc_method_body.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/submit_self_service_registration_flow_with_password_method_body.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/submit_self_service_settings_flow_body.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/submit_self_service_settings_flow_with_oidc_method_body.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/submit_self_service_settings_flow_with_password_method_body.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/submit_self_service_settings_flow_with_profile_method_body.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/submit_self_service_verification_flow_body.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/submit_self_service_verification_flow_with_link_method_body.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/successful_self_service_login_without_browser.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/successful_self_service_registration_without_browser.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/successful_self_service_settings_without_browser.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/ui_container.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/ui_node.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/ui_node_anchor_attributes.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/ui_node_attributes.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/ui_node_image_attributes.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/ui_node_input_attributes.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/ui_node_text_attributes.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/ui_text.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/verifiable_identity_address.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/version.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/volume.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/volume.dart:116:9: Error: Expected ',' before this.
        usageData: VolumeUsageData.fromJson(json[r'UsageData']),
        ^^^^^^^^^
/C:/Program%20Files/flutter/.pub-cache/hosted/pub.dartlang.org/ory_kratos_client-0.7.3-alpha.8/lib/model/volume_usage_data.dart:4:1: Error: A library can't opt out of null safety by default, when using sound null safety.
// @dart=2.0
^^^^^^^^^^^^


FAILURE: Build failed with an exception.

* Where:
Script 'C:\Program Files\flutter\packages\flutter_tools\gradle\flutter.gradle' line: 1156

* What went wrong:
Execution failed for task ':app:compileFlutterBuildDebug'.
> Process 'command 'C:\Program Files\flutter\bin\flutter.bat'' finished with non-zero exit value 1

* Try:
> Run with --stacktrace option to get the stack trace.
> Run with --info or --debug option to get more log output.
> Run with --scan to get full insights.

* Get more help at https://help.gradle.org

BUILD FAILED in 45s
Exception: Gradle task assembleDebug failed with exit code 1

[aeneasr]

What version?

[provokateurin]

The 6.x.x version of the generator is now stable and should produce valid code (although not everything ory uses in the specs is supported).