See Also: TargetException Members
A TargetException is thrown when an attempt is made to invoke a non-static method on a null object. This may occur because the caller does not have access to the member, or because the target does not define the member, and so on.
This exception is not included in the tp://go.microsoft.com/fwlink/?LinkID=247912 or the Portable Class Library, but it is thrown by some members that are. To catch the exception in that case, write a catch statement for Exception instead.