Tag: C# Compiler Errors

C# Error CS0131 – The left-hand side of an assignment must be a variable, property or indexer

C# Error CS0463 – Evaluation of the decimal constant expression failed with error: ‘error’

C# Error CS0132 – ‘constructor’ : a static constructor must be parameterless

C# Error CS0549 – ‘function’ is a new virtual member in sealed class ‘class’

C# Error CS0269 – Use of unassigned out parameter ‘parameter’

C# Error CS1921 – The best overloaded method match for ‘{0}’ has wrong signature for the initializer element. The initializable Add must be an accessible instance method.

C# Error CS0837 – The first operand of an ‘is’ or ‘as’ operator may not be a lambda expression, anonymous method, or method group.

C# Error CS0503 – The abstract method ‘method’ cannot be marked virtual

C# Error CS1988 – Async methods cannot have ref, in or out parameters

C# Error CS0178 – Invalid rank specifier: expected ‘,’ or ‘]’

C# Error CS2001 – Source file ‘{0}’ could not be found.

C# Error CS0631 – ref and out are not valid in this context

C# Error CS4032 – The ‘await’ operator can only be used within an async method. Consider marking this method with the ‘async’ modifier and changing its return type to ‘Task<{0}>‘.

C# Error CS0263 – Partial declarations of ‘type’ must not specify different base classes

C# Error CS8132 – Cannot deconstruct a tuple of ‘{0}’ elements into ‘{1}’ variables.

C# Error CS0717 – ‘{0}’: static classes cannot be used as constraints

C# Error CS8157 – Cannot return ‘{0}’ by reference because it was initialized to a value that cannot be returned by reference

C# Error CS0539 – ‘member’ in explicit interface declaration is not a member of interface

C# Error CS1608 – The RequiredAttribute attribute is not permitted on C# types

C# Error CS1002 – ; expected