The member 'CTextureAf.t2D描画(int, int, Rectangle)' does not hide an accessible member. The new keyword is not required.

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

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

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

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

Nullability of reference types in type of parameter 'args' doesn't match overridden member.

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

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

Possible null reference return.

Possible null reference return.

Cannot convert null literal to non-nullable reference type.

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

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

Cannot convert null literal to non-nullable reference type.

Cannot convert null literal to non-nullable reference type.

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

Nullability of type of parameter 'value' doesn't match overridden member (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 'bool SectionKindAndSubSectionKind.Equals(SectionKindAndSubSectionKind other)' doesn't match implicitly implemented member 'bool IEquatable<SectionKindAndSubSectionKind>.Equals(SectionKindAndSubSectionKind? other)' (possibly because of nullability attributes).