Compiler Error CS1586

Array creation must have array size or array initializer

An array was declared incorrectly.

The following sample generates CS1586:

// CS1586.cs
using System;
class MyClass
{
   public static void Main()
   {
      int[] a = new int[];   // CS1586
      // try the following line instead
      int[] b = new int[5];
   }
}

See Also

Reference

Arrays (C# Programming Guide)