error CS0171 LayoutKind.Explicit

[sgf]

Version Used:
.net 5,C# 9.0
Steps to Reproduce:

  [StructLayout(LayoutKind.Explicit, Pack = 1)]
   public struct UniUint32 {

       public UniUint32(uint _value) {
           value = _value;
       }
       public UniUint32(byte _b1,byte _b2,byte _b3,byte _b4) {
           b1=_b1;
           b2=_b2;
           b3=_b3;
           b4=_b4;
       }

       [FieldOffset(0)]
       public uint value;
       [FieldOffset(0)]
       public byte b1;
       [FieldOffset(1)]
       public byte b2;
       [FieldOffset(2)]
       public byte b3;
       [FieldOffset(3)]
       public byte b4;
       public static implicit operator uint(UniUint32 ip) => ip.value;
       public static unsafe implicit operator UniUint32(uint ip) => *((UniUint32*)&ip);
   }

Expected Behavior:
Compiled successfully
Actual Behavior:

Error CS0171 UniUint32.b4 D:\MySrc\DLBSvr\DLBSvr\Net\IPv4.cs 15 Active

[PathogenDavid]

Duplicate of #7323 #10319 and dotnet/csharplang#1465

As mentioned in dotnet/csharplang#1465 (comment), if you're targeting .NET 5 You can use Unsafe.SkipInit.

If you're targeting older runtimes call the default this() constructor or use this = default (at the expense of a miniscule amount of runtime overhead.)

[sgf]

thanks