Compiler Warning (level 1) C4656
For the latest documentation on Visual Studio 2017 RC, see Visual Studio 2017 RC Documentation.
'symbol' : data type is new or has changed since the last build, or is defined differently elsewhere
You added or changed a data type, making it new to your source code since the last successful build. Edit and Continue does not support changes to existing data types.
Change the data type back to its state prior to the error.
From the Debug menu, choose Apply Code Changes.
From the Debug menu, choose Stop Debugging.
From the Build menu, choose Build.