So I just started to work on a bigger project which includes a web application, a windows service and a UWP. I thought that with one code base one portable class library i can serve all projects.
Now my first problem is, that i can't use the SqlConnection class. I get following error:
Error CS7069 Reference to type 'Component' claims it is defined in 'System', but it could not be found
What I'm doing wrong? Or is it not possible? What would be the right way?