C# Compiler Errors

C# Compiler Error Message CS0031 Constant value ‘value’ cannot be converted to a ‘type’ Reason for the Error You will...

C# Error CS1617 – Invalid option ‘{0}’ for /langversion. Use ‘/langversion:?’ to list supported values. Reason for the Error &...

C# Error CS1737 – Optional parameters must appear after all required parameters Reason for the Error & Solution Optional parameters...

C# Error CS8334 – Members of {0} ‘{1}’ cannot be returned by writable reference because it is a readonly variable...

C# Error CS0818 – Implicitly-typed variables must be initialized Reason for the Error & Solution Implicitly typed locals must be...

C# Error CS1552 – Array type specifier, [], must appear before parameter name Reason for the Error & Solution Array...

C# Compiler Error CS0404 – ‘<‘ unexpected : attributes cannot be generic Reason for the Error You’ll get this error...

C# Error CS1728 – Cannot bind delegate to ‘{0}’ because it is a member of ‘System.Nullable‘ Reason for the Error...

C# Compiler Error CS0501 – ‘member function’ must declare a body because it is not marked abstract, extern, or partial...

C# Error CS1648 – Members of readonly field ‘{0}’ cannot be modified (except in a constructor or a variable initializer)...

C# Error CS1919 – Unsafe type ‘{0}’ cannot be used in object creation Reason for the Error & Solution Unsafe...

C# Error CS8140 – ‘{0}’ is already listed in the interface list on type ‘{2}’ with different tuple element names,...

C# Error CS1750 – A value of type ‘{0}’ cannot be used as a default parameter because there are no...

C# Error CS1726 – Friend assembly reference ‘{0}’ is invalid. Strong-name signed assemblies must specify a public key in their...

C# Error CS0569 – ‘{0}’: cannot override ‘{1}’ because it is not supported by the language Reason for the Error...

C# Error CS1501 – No overload for method ‘{0}’ takes {1} arguments Reason for the Error & Solution No overload...

C# Compiler Error CS0140 – The label ‘label’ is a duplicate Reason for the Error This error is specific to...

C# Error CS0714 – ‘{0}’: static classes cannot implement interfaces Reason for the Error & Solution ‘static type’ : static...

In this tutorial, you’ll learn everything about the error “CS0120 – An object reference is required for the nonstatic field,...

C# Error CS0743 – Expected contextual keyword ‘on’ Reason for the Error & Solution Expected contextual keyword ‘on’ The pattern...