getting error on Enum.GetValues<KnownColor>() how to resolve?

private void GetNames()
{
    Color originColor = Color.FromArgb(255, 206, 206, 206);

    // Simplest, but not necessary the best one
        int Distance(Color left, Color right) =>
          Math.Abs(left.R - right.R) +
          Math.Abs(left.G - right.G) +
          Math.Abs(left.B - right.B) +
          Math.Abs(left.A - right.A);
    
        var result = Enum
          .GetValues<KnownColor>()
          .MinBy(color => Distance(Color.FromKnownColor(color), originColor));
    }

the error is on:

GetValues<KnownColor>

The non-generic method ‘Enum.GetValues(Type)’ cannot be used with type arguments

>Solution :

The type argument for Enum.GetValues was added in .NET 5, according to the documentation.

So, either upgrade your .NET version to .NET 5+, or pass it as a method parameter like this:

Enum.GetValues(typeof(KnownColor))

However, unlike the overload that accepts a type parameter, the above returns a generic array rather than an array of KnownColor, so you have to cast it.

var colors = (KnownColor[])Enum.GetValues(typeof(KnownColor))