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C# Error CS0513 – ‘function’ is abstract but it is contained in nonabstract class ‘class’

C# Error CS0509 – ‘class1’ : cannot derive from sealed type ‘class2’

C# Error CS0508 – ‘Type 1’: return type must be ‘Type 2’ to match overridden member ‘Member Name’

C# Error CS0507 – ‘function1’ : cannot change access modifiers when overriding ‘access’ inherited member ‘function2’

C# Error CS0506 – ‘function1’ : cannot override inherited member ‘function2’ because it is not marked “virtual”, “abstract”, or “override”

C# Error CS0505 – ‘member1’: cannot override because ‘member2’ is not a function

C# Error CS0504 – The constant ‘variable’ cannot be marked static

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

C# Error CS0502 – ‘member’ cannot be both abstract and sealed

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

C# Error CS0500 – ‘class member’ cannot declare a body because it is marked abstract

C# Error CS0470 – ‘method’ cannot implement interface accessor ‘accessor’ for type ‘type’. Use an explicit interface implementation

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

C# Error CS0446 – Foreach cannot operate on a ‘Method or Delegate’

C# Error CS0443 – Syntax error, value expected

C# Error CS0442 – ‘Property’: abstract properties cannot have private accessors

C# Error CS0441 – ‘class’: a class cannot be both static and sealed

C# Error CS0439 – An extern alias declaration must precede all other elements defined in the namespace

C# Error CS0433 – The type TypeName1 exists in both TypeName2 and TypeName3

C# Error CS0432 – Alias ‘identifier’ not found