How to link V2 API for macOS App Store?

 

The macOS version of my App is waiting for review, but I still have reservations about the Dropbox V2 API OSX authentication scheme. To get this more-or-less working version I spent many hours spread over many days trying lots of things.  In particular I built a static library, and even though ar showed that all the modules and entry points existed, my App still crashed because DBClientsManager:setupWithAppKeyDesktop couldn’t be found. Go figure.

 

In desperation I built a new project from scratch and put my code in bit by bit … I never ran into the dyld error and mis-signed framework, but ….

 

The link mechanism is still, er, odd.  If there is another instance of any App that uses my DB key then it’s likely to get loaded (“recalled” per my previous post) during authentication after confirming the JavaScriot dialog. This means that there are then *two* instances my App running - you can see them in the Dock - but neither gets authorized. This happens most of the time, but not all the time !! In order to get a working exported macOS test App I must do a project clean to delete the Xcode-generated executable and also delete the archive that I just built because there is an executable buried in that package.  Why I get gray :)