The annotation for nullable reference types should only be used in code within a '#nullable' annotations context.

'ComplexTypeModelBinder' is obsolete: 'This type is obsolete and will be removed in a future version. Use ComplexObjectModelBinder instead.'

'ComplexTypeModelBinder' is obsolete: 'This type is obsolete and will be removed in a future version. Use ComplexObjectModelBinder instead.'

'ComplexTypeModelBinder' is obsolete: 'This type is obsolete and will be removed in a future version. Use ComplexObjectModelBinder instead.'

The annotation for nullable reference types should only be used in code within a '#nullable' annotations context.

'ComplexTypeModelBinder' is obsolete: 'This type is obsolete and will be removed in a future version. Use ComplexObjectModelBinder instead.'

'ComplexTypeModelBinder' is obsolete: 'This type is obsolete and will be removed in a future version. Use ComplexObjectModelBinder instead.'

'ComplexTypeModelBinder' is obsolete: 'This type is obsolete and will be removed in a future version. Use ComplexObjectModelBinder instead.'

The variable 'ex' is declared but never used