Node.js 16 actions are deprecated. Please update the following actions to use Node.js 20: olegtarasov/get-tag@v2.1.2. For more information see: https://github.blog/changelog/2023-09-22-github-actions-transitioning-from-node-16-to-node-20/.

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.

Cannot convert null literal to non-nullable reference type.

Nullability of type of parameter 'obj' doesn't match overridden member (possibly because of nullability attributes).

Nullability of reference types in type of parameter 'other' of 'int HierarchyDefinition.CompareTo(HierarchyDefinition other)' doesn't match implicitly implemented member 'int IComparable<HierarchyDefinition>.CompareTo(HierarchyDefinition? other)' (possibly because of nullability attributes).

Nullability of type of parameter 'obj' doesn't match overridden member (possibly because of nullability attributes).

Nullability of reference types in type of parameter 'other' of 'int PositionedCell.CompareTo(PositionedCell other)' doesn't match implicitly implemented member 'int IComparable<PositionedCell>.CompareTo(PositionedCell? other)' (possibly because of nullability attributes).