Greetings - I found a post from Sat, 29 Aug 2015 17:06:21 -0700 using a web search for the error message noted therein, and have found a solution that works for me. I’ve joined the list to post this, in case Carl is still having an issue with this...
> Xcode 6.4, OS X 10.10.5 > > Xcode suddenly refuses to build a certain Cocoa project. (Other Cocoa and iOS > projects build okay.) I brought out a backup copy of the project, and it > refuses to build that, too. > > I'm getting many of the following bizarre errors: > > /opt/local/include/unctrl.h:60:63: error: unknown type name 'SCREEN' > NCURSES_EXPORT(NCURSES_CONST char *) NCURSES_SP_NAME(unctrl) (SCREEN*, > chtype); > > /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.10.sdk/System/Library/Frameworks/CoreFoundation.framework/Headers/CoreFoundation.h:11:10: > fatal error: > could not build module 'Darwin' > > /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.10.sdk/System/Library/Frameworks/Foundation.framework/Headers/Foundation.h:6:10: > fatal error: > could not build module 'CoreFoundation' > > /Users/carl/Desktop/Projects/XOAS_29Aug2015/XOAS/XOAS-Prefix.pch:8:13: fatal > error: could not build module 'Foundation' > #import <Foundation/Foundation.h> > ^ > > Something is fundamentally wrong. I've reinstalled Xcode and the commandline > tools. How can I proceed? > -Carl My error was initiated from "#include <stdio.h>” in my project. Since the error happened virtually at the top line of my first .c file, I decided to make a throwaway “hello world” C program using the Command Line Tool template in Xcode 7, and see just how fundamental the problem was. Of course it worked…so I added /opt/local/include to my header paths, and it still worked. So, I created an entirely new Xcode project, using my actual source files, added /opt/local/include to the header path, added my /opt/local/lib libraries for linking, and it all works again… A comparison of the working and non-working projects did reveal some differences, but nothing that would seem to be able to cause the problem, and my attempts to change Build Settings in the non-working project to match what was in the working project did not succeed… My suggestion: Carl, if you’ve not done so, try re-creating your project in the latest Xcode for your version of OS X; also you might want to update your MacPorts packages. Hope this helps… — Philip
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