C28221

 

For the latest documentation on Visual Studio 2017, see Visual Studio 2017 Documentation.

For the latest documentation on Visual Studio 2017, see C28221 on docs.microsoft.com. warning C28221: String expression expected for the parameter in the annotation

This warning indicates that a parameter to an annotation is expected to be a string, and some other type was encountered. This usually indicates an incorrectly coded annotation macro and is not expected to be seen in normal use.

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