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Compiler Error CS0143

The type 'class' has no constructors defined

There is no appropriate constructor available. This is the case for built-in numeric value types, which are initialized simply by assigning a value to them.

The following sample generates CS0143:

// CS0143.cs
class MyClass
   static public void Main ()
      double d = new double(4.5);   // CS0143
      // Try this line instead:
      // double d = 4.5;