As I've said before, my WPF project cannot show a designer as it gives a 'string is not a valid DateTime' error ( despite me having zero code that works with dates in any way ). So, today I created a property and decided to rename it. I tried to use the built in renaming function and got an error.
The file '' cannot be refactored. String was not recognised as a valid date time.
You'd think that Microsoft would have the money to pay developers to check before showing an error message like that.