C# Error CS1057 – ‘{0}’: static classes cannot contain protected members

C# Error

CS1057 – ‘{0}’: static classes cannot contain protected members

Reason for the Error & Solution

‘member’: static classes cannot contain protected members

This error is generated by declaring a protected member inside a static class.

Example

The following example generates CS1057.

// CS1057.cs  
using System;  
  
static class Class1  
{  
    protected static int x;   // CS1057  
    public static void Main()  
    {  
    }  
}