How to declare variable in solution file for use in project files.

Hi Folks,

Apologies if this is not the right place to ask, but I would like to declare a variable in my solution file that can used by all of the projects (prof files) in that solution.

More specifically in the project files, references are stored using relative paths which cause issues if they don't exist. I would like to replace the relative paths with a variable set in the solution file that can easily be changed when the solution is built in a different location.

So I would like to replace "../../../SomeProject"  with "$(SomeLocation)/SomeProject"  but set the $(SomeLocation) in the solution file.

Regards

Andy