# Compiler Error CS0270

Array size cannot be specified in a variable declaration (try initializing with a 'new' expression)

This error occurs when a size is specified as part of an array declaration. To resolve, use the new operator expression.

The following example generates CS0270:

// CS0270.cs
// compile with: /t:module

public class Test
{
int[10] a;   // CS0270
// To resolve, use the following line instead:
// int[] a = new int[10];
}