Node.js 20 is deprecated. The following actions target Node.js 20 but are being forced to run on Node.js 24: actions/checkout@v4, actions/setup-dotnet@v4. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/

Nullability of reference types in type of parameter 'value' doesn't match implemented member 'bool IList.Contains(object? value)' (possibly because of nullability attributes).

Nullability of reference types in type of parameter 'value' doesn't match implemented member 'int IList.Add(object? value)' (possibly because of nullability attributes).

Cannot convert null literal to non-nullable reference type.

Cannot convert null literal to non-nullable reference type.

'JapaneseMonophoneG2p.LoadPack(byte[], Func<string, string>, Func<string, string>)' hides inherited member 'G2pPack.LoadPack(byte[], Func<string, string>, Func<string, string>)'. Use the new keyword if hiding was intended.

Cannot convert null literal to non-nullable reference type.

Cannot convert null literal to non-nullable reference type.

Cannot convert null literal to non-nullable reference type.

Cannot convert null literal to non-nullable reference type.