Default -- ThePhile.Web.PhilPage could not be load
I am sure the answer to this is so obvious but when I tried to open ThePhile (Default) file the following error message appeared:
The file could not be loaded into the Web Firns designer. Please correct the following error and then try loading it again:
The designer could not be shown for this file because none of the classes within it can be designed. The designer inspected the following classes in the file:
_Default --- The base class 'Wrox.ThePhile.Web.PhilePage' could not be loaded. Ensure the assembly has been referenced or built if it is part of the project.
Make sure all of the classes used in the page are built or referenced in the project.
When checking ThePhile references every one is covered by an ! within a yellow triangle.
Right clicking give me 2 options: Remove or properties (which is greyed out)
I have tried to put the project references back but it is greyed out.
(except for copy local which at the time of writing is set to true.)
How do I re reference ThePhile projects to that I can run ThePhile application?