C# Compiler Error
CS0508 – ‘Type 1’: return type must be ‘Type 2’ to match overridden member ‘Member Name’
Reason for the Error
You’ll get this error in your C# code when you attempt to change the return type of the method when overriding.
For example, let’s try to compile the below C# code snippet.
using System;
namespace DeveloperPublishNamespace
{
abstract public class BaseClass
{
virtual protected void Method1()
{
}
}
public class ChildClass : BaseClass
{
protected override int Method1()
{
return 0;
}
}
class Program
{
static void Main(string[] args)
{
Console.WriteLine("No Error");
}
}
}You’ll receive the error code CS0508 because the C# compiler has detected that you are changing the data type of the function “Method1” in the inherited class “ChildClass”.
Error CS0508 ‘ChildClass.Method1()’: return type must be ‘void’ to match overridden member ‘BaseClass.Method1()’ DeveloperPublish C:\Users\Senthil\source\repos\ConsoleApp4\ConsoleApp4\Program.cs 13 Active
Solution
You can fix this error in your C# program by making sure that both methods declare the same data type.
using System;
namespace DeveloperPublishNamespace
{
abstract public class BaseClass
{
virtual protected void Method1()
{
}
}
public class ChildClass : BaseClass
{
protected override void Method1()
{
}
}
class Program
{
static void Main(string[] args)
{
Console.WriteLine("No Error");
}
}
}
