Build error in VS2012 without error message when using [ScriptField]

[theoutlander]

Spent hours trying to find this one .... funny thing was that when I introduced the attribute, it didn't complain...a couple of days later I went back to modify my code and it wouldn't build. Spent four hours and by process of elimination I figured that the problem occurs when using [ScriptField] on a generated script.

I'm not sure where to fix this, but it would be nice if the error was shown instead of just the Build Failed message. The output window didn't have anything either.

Also, it would be nice to move the import specific attributes into their own namespace to avoid confusion.