[2010] Visual Studio Add In Debugger don't work...

Hi,

I'm working on a add in for Visual Studio 2010.

It générate base files for business feature creation in MyPrettyCMS asp.net MVC4 Framework.

I have a first version that works but I can't use the step by step debugger with it.

I followed steps explained here : http://msdn.microsoft.com/en-us/library/f7fb383x(v=vs.80).aspx

When I put the break point on the Exec method it seems not to be attached to the debuggerr when I lauch the project.

Do someone has an experience on debugging Visual Studio Add in ?

Thanks