Try correcting the name to match an existing class. See https://dart.dev/diagnostics/creation_with_non_type to learn more about this problem.

Try importing the library that defines 'SdkReference', correcting the name to the name of an existing function, or defining a function named 'SdkReference'. See https://dart.dev/diagnostics/undefined_function to learn more about this problem.

Try importing the library that defines 'PubSpec', correcting the name to the name of an existing function, or defining a function named 'PubSpec'. See https://dart.dev/diagnostics/undefined_function to learn more about this problem.

Try importing the library that defines 'HostedReference', correcting the name to the name of an existing function, or defining a function named 'HostedReference'. See https://dart.dev/diagnostics/undefined_function to learn more about this problem.

Try correcting the name to match an existing class. See https://dart.dev/diagnostics/creation_with_non_type to learn more about this problem.

Try importing the library that defines 'SdkReference', correcting the name to the name of an existing function, or defining a function named 'SdkReference'. See https://dart.dev/diagnostics/undefined_function to learn more about this problem.

Try correcting the name to match an existing class. See https://dart.dev/diagnostics/creation_with_non_type to learn more about this problem.

Try creating the file referenced by the URI, or try using a URI for a file that does exist. See https://dart.dev/diagnostics/uri_does_not_exist to learn more about this problem.

Try correcting the name to match an existing class. See https://dart.dev/diagnostics/creation_with_non_type to learn more about this problem.

Try importing the library that defines 'SdkReference', correcting the name to the name of an existing function, or defining a function named 'SdkReference'. See https://dart.dev/diagnostics/undefined_function to learn more about this problem.

The following actions uses node12 which is deprecated and will be forced to run on node16: invertase/github-action-dart-analyzer@v1. For more info: https://github.blog/changelog/2023-06-13-github-actions-all-actions-will-run-on-node16-instead-of-node12-by-default/

The following actions use a deprecated Node.js version and will be forced to run on node20: actions/checkout@v3, invertase/github-action-dart-analyzer@v1. For more info: https://github.blog/changelog/2024-03-07-github-actions-all-actions-will-run-on-node20-instead-of-node16-by-default/

The `set-output` command is deprecated and will be disabled soon. Please upgrade to using Environment Files. For more information see: https://github.blog/changelog/2022-10-11-github-actions-deprecating-save-state-and-set-output-commands/

The `set-output` command is deprecated and will be disabled soon. Please upgrade to using Environment Files. For more information see: https://github.blog/changelog/2022-10-11-github-actions-deprecating-save-state-and-set-output-commands/

The `set-output` command is deprecated and will be disabled soon. Please upgrade to using Environment Files. For more information see: https://github.blog/changelog/2022-10-11-github-actions-deprecating-save-state-and-set-output-commands/