I am updating from blackpearl 0803, with workflows created in the K2 designer for Visual Studio 2005.

On a new system, I have installed Visual Studio 2010 and the blackpearl 4.5 client tools.

I used the VS2010 conversion to convert the VS2005 solution to VS2010, but the .k2proj does not open - it displays as XML.

However, I can open the individual .kprx files and they appear in the K2 process designer.

The problem is if I right-click on an event and choose View Code -> Event Item, I get "Object reference not set to an instance of an object". 

This occurs on every event, and I tried in in four different .kprx files.

Is there something else I need to do to get these to work in VS2010?