Error cs0568 is making me unable to build the project

[pj8055]

As i said in the title the error is making me unable to build due to the "public Move()" not allowing itself to be null or something to quote exactly its "structs cannot contain explicit parameterless constructors". im not entirely sure as im not used to developing in c# except some basics in unity so im unsure of what to do. i read that i might have to update to c# 10+ but i want to make sure first.

[CREAsTIVE]

more details? (line code of error)

[mcthouacbb]

https://learn.microsoft.com/en-us/dotnet/csharp/language-reference/compiler-messages/constructor-errors#constructors-in-struct-types:~:text=generates%20this%20warning.-,Constructors%20in%20struct%20types,-CS0568%20%2D%20Structs

It says here that CS0568 is only turned on for C# 9 and earlier, so it looks like the simplest solution will probably be to upgrade to C# 10

[pj8055]

	public bool IsPromotion => move.IsPromotion;
	public bool IsCastles => move.MoveFlag == Chess.Move.CastleFlag;
	public bool IsNull => move.IsNull;
	public ushort RawValue => move.Value;
	public static readonly Move NullMove = new();

	readonly Chess.Move move;
	readonly ushort pieceTypeData;

	/// <summary>
	/// Create a null/invalid move.
	/// This is simply an invalid move that can be used as a placeholder until a valid move has been found
	/// </summary>
	public Move() // **Right here is where the bug is**
	{
		move = Chess.Move.NullMove;
		pieceTypeData = 0;
	}

[pj8055]

thank you i will

[CharlesCapel]

Same error spot (Move.cs line 29) and can't build too.

Error CS0568
Structs cannot contain explicit parameterless constructors

[bean-b]

same : warning CS8625: Cannot convert null literal to non-nullable reference type.