Hello
Thank you for the report - and for providing all the info. Indeed I see that a "-framework null" argument is passed to the linker. This is clearly a bug. I suspect it's generated by pbxprojparse.exe, but right now I'm unable to tell where the problem could be and I'd like to study that more closely. Could you send me the Xcode project directory for analysis ? You can delete the "build" subdirectory to save space. Confidentiality is guaranteed of course.
Thanks in advance,