For the latest documentation on Visual Studio 2017, see Visual Studio 2017 Documentation.
For the latest documentation on Visual Studio 2017, see C28224 on docs.microsoft.com. warning C28224: Annotation requires parameters
This warning indicates that the named annotation is used without parameters and at least one parameter is required. This should not be possible if the standard macros are being used for annotations; this warning is not expected to be seen in normal use.