C# Compiler Errors

C# Error CS8151 – The return expression must be of type ‘{0}’ because this method returns by reference Reason for...

Compiler Error CS0275 – ‘accessor’: accessibility modifiers may not be used on accessors in an interface Reason for the Error...

C# Error CS0694 – Type parameter ‘{0}’ has the same name as the containing type, or method Reason for the...

C# Compiler Error CS0153 – A goto case is only valid inside a switch statement Reason for the Error You...

C# Compiler Error CS0163 – Control cannot fall through from one case label (‘label’) to another Reason for the Error...

C# Error CS0685 – Conditional member ‘{0}’ cannot have an out parameter Reason for the Error & Solution Conditional member...

C# Error CS0839 – Argument missing Reason for the Error & Solution Argument missing. An argument is missing in the...

C# Error CS8139 – ‘{0}’: cannot change tuple element names when overriding inherited member ‘{1}’ Reason for the Error &...

C# Error CS0729 – Type ‘{0}’ is defined in this assembly, but a type forwarder is specified for it Reason...

C# Error CS0637 – The FieldOffset attribute is not allowed on static or const fields Reason for the Error &...

C# Error CS1513 – } expected Reason for the Error & Solution } expected The compiler expected a closing curly...

C# Compiler Error CS0236 – A field initializer cannot reference the non-static field, method, or property ‘name’ Reason for the...

C# Error CS2034 – A /reference option that declares an extern alias can only have one filename. To specify multiple...

C# Error CS0686 – Accessor ‘{0}’ cannot implement interface member ‘{1}’ for type ‘{2}’. Use an explicit interface implementation. Reason...

C# Compiler Error CS0173 – Type of conditional expression cannot be determined because there is no implicit conversion between ‘class1’...

C# Error CS1656 – Cannot assign to ‘{0}’ because it is a ‘{1}’ Reason for the Error & Solution Cannot...

C# Error CS1651 – Fields of static readonly field ‘{0}’ cannot be used as a ref or out value (except...

C# Error CS0825 – The contextual keyword ‘var’ may only appear within a local variable declaration or in script code...

C# Error CS0682 – ‘{0}’ cannot implement ‘{1}’ because it is not supported by the language Reason for the Error...

In this post, you’ll learn all the C# compiler error and warnings from the code CS9001 to CS9100. C# Compiler...