Compiler Warning (level 1) CS3005

Identifier 'identifier' differing only in case is not CLS-compliant

A public, protected, or protected internal identifier, which differs from another public, protected, or protected internal identifier only in the case of one or more letters, is not compliant with the Common Language Specification (CLS). For more information on CLS Compliance, see Writing CLS-Compliant Code and Common Language Specification.

The following example generates CS3003:

// CS3005.cs

using System;

public class a
    public static int a1 = 0;
    public static int A1 = 1;   // CS3005

    public static void Main()

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