"Generate new type..." -> "Generate Type failed: Object reference not set to an instance of an object."

I have a question about generating a new type while writing a unit test in Visual Studio 2010.

I have a project "Donk" for the code and a test project "DonkTest" for the unit tests. The test project has a reference to the project "Donk".

In my unit test I write something like

Donk d = new Donk();

The class does not exist, therefore I press CTRL-. and choose "Generate new type...". As location I choose the project "Donk", other data isn't changed.

After pressing "OK" I get the message

"Generate Type failed: Object reference not set to an instance of an object."

Am I missing something?

Bye,

Stefan

Tags: Visual Studio, Unit Testing