Compiler errors C3200 Through C3299
The articles in this section of the documentation explain a subset of the error messages that are generated by the compiler.
Important
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Note
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Error messages
| Error | Message |
|---|---|
| Compiler error C3200 | 'type': invalid template argument for template parameter 'parameter', expected a class template |
| Compiler error C3201 | the template parameter list for class template 'template' does not match the template parameter list for template parameter 'parameter' |
| Compiler error C3202 | 'identifier': invalid default argument, expected a class template |
| Compiler error C3203 | 'identifier': unspecialized class template/generic can't be used as a template/generic argument for template/generic parameter 'parameter', expected a real type |
| Compiler error C3204 | 'function' cannot be called from within a catch block |
| Compiler error C3205 | argument list for template template parameter 'identifier' is missing |
| Compiler error C3206 | 'function': invalid template/generic argument for 'template', missing template/generic argument list on class template/generic 'type' |
| Compiler error C3207 | 'function': invalid template argument for 'parameter', class template expected |
| Compiler error C3208 | 'function': template parameter list for class template 'template' does not match template parameter list for template template parameter 'parameter' |
| Compiler error C3209 | 'type': generic class must be a managed/WinRT class |
| Compiler error C3210 | 'identifier': access declaration can only be applied to a base class member |
| Compiler error C3211 | 'function': explicit specialization is using partial specialization syntax, use template <> instead |
| Compiler error C3212 | 'function': an explicit specialization of a template member must be a member of an explicit specialization |
| Compiler error C3213 | base class 'class' is less accessible than 'derived_class' |
| Compiler error C3214 | 'argument': invalid type argument for generic parameter 'parameter' of generic 'type', does not meet constraint 'constraint' |
| Compiler error C3215 | 'constraint1': generic type parameter already constrained by 'constraint2' |
| Compiler error C3216 | constraint must be a generic parameter, not 'type' |
| Compiler error C3217 | 'parameter': generic parameter cannot be constrained in this declaration |
| Compiler error C3218 | 'type': type not allowed as a constraint |
| Compiler error C3219 | 'parameter': generic parameter cannot be constrained by multiple non-interfaces: 'type' |
| Compiler error C3220 | 'interface': interface cannot have progid |
| Compiler error C3221 | 'member': multiple 'default' and 'case' attributes not allowed on a member |
| Compiler error C3222 | 'function': cannot declare default arguments for member functions of a managed/WinRT type or generic functions |
| Compiler error C3223 | 'property': you cannot apply 'typeid' to a property |
| Compiler error C3224 | 'type': no overloaded generic class takes 'number' generic type arguments |
| Compiler error C3225 | generic type argument for 'argument' cannot be 'type', it must be a value type or a handle to a reference type |
| Compiler error C3226 | A template declaration is not allowed inside a generic declaration |
| Compiler error C3227 | 'type': cannot use 'operator' to allocate a generic type |
| Compiler error C3228 | 'function': generic type argument for 'argument' cannot be 'type', it must be a value type or handle type |
| Compiler error C3229 | 'type': indirections on a generic type parameter are not allowed |
| Compiler error C3230 | 'function': template type argument for 'argument' cannot contain a generic type parameter: 'type' |
| Compiler error C3231 | 'type': template type argument cannot use a generic type parameter |
| Compiler error C3232 | 'parameter': a generic type parameter cannot be used in a qualified name |
| Compiler error C3233 | 'type': generic type parameter already constrained |
| Compiler error C3234 | a generic class may not derive from a generic type parameter |
| Compiler error C3235 | 'specialization': explicit or partial specialization of a generic class is not allowed |
| Compiler error C3236 | explicit instantiation of a generic is not allowed |
| Compiler error C3237 | 'class': a generic class cannot be a custom attribute |
| Compiler error C3238 | 'type': a type with this name has already been forwarded to assembly 'assembly' |
| Compiler error C3239 | 'type': pointer to interior/pin pointer is disallowed by the common language runtime |
| Compiler error C3240 | 'identifier': must be a non-overloaded abstract member function of 'type' |
| Compiler error C3241 | 'member': this method was not introduced by 'interface' |
| Compiler error C3242 | 'function': you can only explicitly override virtual functions |
| Compiler error C3243 | none of the overload functions were introduced by 'interface' |
| Compiler error C3244 | 'member': this method was introduced by 'interface1' not by 'interface2' |
| Compiler error C3245 | 'function': use of a variable template requires template argument list |
| Compiler error C3246 | 'class': cannot inherit from 'base_class' as it has been declared as 'inheritance' |
| Compiler error C3247 | 'coclass': a coclass cannot inherit from another coclass 'base_class' |
| Compiler error C3248 | Obsolete. 'function': function declared as 'sealed' cannot be overridden by 'function' |
| Compiler error C3249 | illegal statement or sub-expression for 'constexpr' function (Obsolete in Visual Studio 2022.) |
| Compiler error C3250 | 'declaration': declaration is not allowed in 'constexpr' function body (Obsolete in Visual Studio 2022.) |
| Compiler error C3251 | cannot invoke base class method on a value type instance (Obsolete in Visual Studio 2022.) |
| Compiler error C3252 | 'function': cannot reduce accessibility of a virtual method in a managed/WinRT type |
| Compiler error C3253 | 'function': error with explicit override |
| Compiler error C3254 | 'function': class contains explicit override 'function' but does not derive from an interface that contains the function declaration |
| Compiler error C3255 | 'type': cannot dynamically allocate this value type object on native heap |
| Compiler error C3256 | 'function': variable use does not produce a constant expression (Obsolete in Visual Studio 2022.) |
| Compiler error C3257 | Obsolete. |
| Compiler error C3258 | Obsolete. |
| Compiler error C3259 | 'constexpr' functions can only have one return statement (Obsolete in Visual Studio 2022.) |
| Compiler error C3260 | 'token': skipping unexpected token(s) before lambda body |
| Compiler error C3261 | a function returning a managed/WinRT array must have array brackets at the end of the declaration: 'identifier(...) []' |
| Compiler error C3262 | invalid array indexing: number dimension(s) specified for number-dimensional 'type' |
| Compiler error C3263 | Obsolete. |
| Compiler error C3264 | 'identifier': a class-constructor cannot have a return type |
| Compiler error C3265 | cannot declare a managed 'managed_construct' in an unmanaged 'unmanaged_construct' |
| Compiler error C3266 | 'function': a class-constructor must have a 'void' parameter list |
| Compiler error C3267 | Obsolete. |
| Compiler error C3268 | 'function': a generic function or a member-function of a generic class cannot have a variable parameter list |
| Compiler error C3269 | 'function': a member-function of a managed/WinRT type cannot be declared with '...' |
| Compiler error C3270 | 'field': the FieldOffset attribute can only be used in the context of StructLayout(LayoutKind::Explicit) |
| Compiler error C3271 | 'field': invalid value 'number' for the FieldOffset attribute |
| Compiler error C3272 | 'symbol': symbol requires FieldOffset, as it is a member of struct/class type_name defined with StructLayout(LayoutKind::Explicit) |
| Compiler error C3273 | 'keyword': not allowed on C++ try block |
| Compiler error C3274 | finally / __finally without matching try |
| Compiler error C3275 | 'identifier': cannot use this symbol without qualifier (Obsolete in Visual Studio 2022.) |
| Compiler error C3276 | 'keyword': jump out of finally/__finally block has undefined behavior during termination handling |
| Compiler error C3277 | cannot define an unmanaged enum 'enumeration' inside managed 'type' |
| Compiler error C3278 | direct call of interface or pure method 'function' will fail at runtime |
| Compiler error C3279 | partial and explicit specializations as well as explicit instantiations of class templates declared in the cli namespace are disallowed |
| Compiler error C3280 | 'function': a member-function of a managed type cannot be compiled as an unmanaged function |
| Compiler error C3281 | 'function': global operator cannot have managed/WinRT type 'type' in signature |
| Compiler error C3282 | generic parameter lists can only appear on managed/WinRT classes, structs, or functions |
| Compiler error C3283 | 'interface': an interface cannot have an instance constructor |
| Compiler error C3284 | the constraints for generic parameter 'parameter' of function 'declarator' must match the constraints for generic parameter 'parameter' of function 'declarator' |
| Compiler error C3285 | for each statement cannot operate on variables of type 'type' |
| Compiler error C3286 | 'specifier': an iteration variable cannot have any storage-class specifiers |
| Compiler error C3287 | the type 'type' (return type of GetEnumerator) must have a suitable public MoveNext member function and public Current property |
| Compiler error C3288 | 'type': illegal dereference of a handle type |
| Compiler error C3289 | 'identifier': a trivial property cannot be indexed |
| Compiler error C3290 | 'type': a trivial property cannot have reference type |
| Compiler error C3291 | 'default': cannot be the name of a trivial property |
| Compiler error C3292 | the cli namespace cannot be reopened |
| Compiler error C3293 | 'identifier': use 'default' to access the default property (indexer) for class 'class' |
| Compiler error C3294 | Obsolete. |
| Compiler error C3295 | '#pragma specifier' can only be used at global or namespace scope |
| Compiler error C3296 | 'identifier': a property with this name already exists |
| Compiler error C3297 | ' constraint2': cannot use ' constraint1' as a constraint because ' constraint1' has the value constraint |
| Compiler error C3298 | ' constraint1': cannot use ' constraint2' as a constraint because ' constraint2' has the ref constraint and ' constraint1' has the value constraint |
| Compiler error C3299 | ' function': cannot specify constraints, they are inherited from the base method |
See also
C/C++ Compiler and build tools errors and warnings
Compiler errors C2000 - C3999, C7000 - C7999
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