I have an XCode workspace created with XCode 6.0.1. It constains 2 (Swift) libraries and one iOS app (Swift) that depends on those 2 libraries. I had stable setup that allowed m
Ok, I ran into the same problem as you. After deleting the derived data, I could not re-link my binaries again. I think the reason is because the derived data is where the binaries are written to and linked against in your project.
What I did to solve was to select my Framework as my build target. After building it, the Framework target turned from red to black. I can see in your screenshot it is red, meaning it has not been compiled into a binary and written on disk.
Once I did this, I was able to re-link the Framework to my Project because there was a reference to it on disk. Hope this helps!