WRTINNOWRT

Message        Writable variable resides in nowrt extern model.

Description    The current extern model places all external objects
               in a read-only section.  An object without a const
               type qualifier in such a section means that while the
               compiler will not diagnose writes to the object, any
               attempt to modify the object at runtime will cause
               the program to fail.  This might not have been what
               you intended.

User Action    Place non-const objects in sections that can be
               modified.