Your workflow is using a version of actions/cache that is scheduled for deprecation, actions/cache@v2. Please update your workflow to use either v3 or v4 of actions/cache to avoid interruptions. Learn more: https://github.blog/changelog/2024-12-05-notice-of-upcoming-releases-and-breaking-changes-for-github-actions/#actions-cache-v1-v2-and-actions-toolkit-cache-package-closing-down

ubuntu-latest pipelines will use ubuntu-24.04 soon. For more details, see https://github.com/actions/runner-images/issues/10636

The annotation for nullable reference types should only be used in code within a '#nullable' annotations context.

The type 'K' cannot be used as type parameter 'TKey' in the generic type or method 'Dictionary<TKey, TValue>'. Nullability of type argument 'K' doesn't match 'notnull' constraint.

Nullability of reference types in type of parameter 'x' of 'bool FNVByteComparison.Equals(byte[] x, byte[] y)' doesn't match implicitly implemented member 'bool IEqualityComparer<byte[]>.Equals(byte[]? x, byte[]? y)' (possibly because of nullability attributes).

Nullability of reference types in type of parameter 'y' of 'bool FNVByteComparison.Equals(byte[] x, byte[] y)' doesn't match implicitly implemented member 'bool IEqualityComparer<byte[]>.Equals(byte[]? x, byte[]? y)' (possibly because of nullability attributes).

The type 'TKey' cannot be used as type parameter 'TKey' in the generic type or method 'Dictionary<TKey, TValue>'. Nullability of type argument 'TKey' doesn't match 'notnull' constraint.

Possible null reference argument for parameter 'other' in 'XDocument.XDocument(XDocument other)'.

'Page.ExperimentalAccess' is obsolete: 'Use methods and properties directly at Page level.'

'Page.Experimental' is obsolete: 'Use methods and properties directly at Page level.'

Possible null reference argument for parameter 'values' in 'string string.Join(string? separator, IEnumerable<string?> values)'.