Object reference not set to an instance of an object

I receive this error, when try to see the design of my workflow and if I try to execute my asp.net app, an exception with the same error is returned when tries to Start the runtime
.
My workflow and my app works well until I have done small update but also if delete these updates, my workflow doesn't work.

My workflow is a state machine con code separation ome.

At last, if I try to create a new state machine workfow project in a blank solution and try to see it when it is empty, I also receive the same error

Answer this question

Object reference not set to an instance of an object

helmutv

Do you have Windows Workflow Foundation Beta 2 installed Did you have the previous beta 1 installed and if so, was it removed properly in two parts Can you create any type of workflow projects Does the same error occur each time

Regards,
Paul
BradyGuy
Please help, also if i try to open a workflow like this http://www.masteringbiztalk.com/blogs/jon/PermaLink,guid,7ec8a0d3-7c96-405f-aa60-edb23ce06d3b.aspx or the sample state machine workflow of the sdk tutorial i recive the same error
Tony P
I don't know why i had that problem... I resolved it after unistalling and reinstalling the beta1.2 of windows worklow. After that the problem doesn't come up again
Now with windows workflow beta 2 all seems to work properly

Thank you for your answer
Object reference not set to an instance of an object

Answer this question