I have an app made with Xamarin.iOS. I haven't had any problems in the past year to build the solution, but starting today I can no longer build / run the solution. The error I get when I try to run the solution in the simulator is,
Compiling to native code /Developer/MonoTouch/usr/bin/mtouch -sdkroot "/Applications/Xcode.app/Contents/Developer" --cache "/Users/danielnordmark/Projects/Diet52App/Diet52App/obj/iPhoneSimulator/Release/mtouch-cache" --nomanifest --nosign -sim "/Users/danielnordmark/Projects/Diet52App/Diet52App/bin/iPhoneSimulator/Release/Diet52App.app" -r "/Users/danielnordmark/Projects/Diet52App/Diet52App.Core.iOS/bin/iPhoneSimulator/Release/Diet52AppCoreiOS.dll" -r "/Users/danielnordmark/Projects/Diet52App/OxyPlot.MonoTouch/bin/Release/OxyPlot.MonoTouch.dll" -r "/Developer/MonoTouch/usr/lib/mono/2.1/System.dll" -r "/Developer/MonoTouch/usr/lib/mono/2.1/System.Xml.dll" -r "/Developer/MonoTouch/usr/lib/mono/2.1/System.Core.dll" -r "/Developer/MonoTouch/usr/lib/mono/2.1/monotouch.dll" -r "/Developer/MonoTouch/usr/lib/mono/2.1/MonoTouch.Dialog-1.dll" -r "/Users/danielnordmark/Projects/Diet52App/Diet52App/TimeSquare-calendar/TimesSquare.iOS.dll" -r "/Users/danielnordmark/Projects/Diet52App/Diet52App/External/OxyPlot.dll" -r "/Users/danielnordmark/Projects/Diet52App/Diet52App/External/TapstreamiOS.dll" -r "/Users/danielnordmark/Projects/Diet52App/Components/fitpulsetheme-1.1/lib/ios/FitpulseTheme.Controls.iOS.ProgressBar.dll" -r "/Users/danielnordmark/Projects/Diet52App/Components/fitpulsetheme-1.1/lib/ios/FitpulseTheme.Controls.iOS.Switch.dll" -r "/Users/danielnordmark/Projects/Diet52App/Components/fitpulsetheme-1.1/lib/ios/FitpulseTheme.Utils.iOS.dll" -r "/Users/danielnordmark/Projects/Diet52App/Components/fitpulsetheme-1.1/lib/ios/FitpulseTheme.iOS.dll" -r "/Users/danielnordmark/Projects/Diet52App/Components/irate-1.8.0/lib/ios/MTiRate.dll" -debug -linksdkonly -sdk "7.1" -targetver "6.0" --abi=i386 "-cxx" "/Users/danielnordmark/Projects/Diet52App/Diet52App/bin/iPhoneSimulator/Release/Diet52App.exe" Xamarin.iOS 7.0.6 Business Edition using framework: /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator7.1.sdk Process exited with code 1, command: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang++ -cxx -Wl,-pie -gdwarf-2 -arch i386 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator7.1.sdk -Qunused-arguments -fobjc-legacy-dispatch -fobjc-abi-version=2 -mios-simulator-version-min=6.0 /Users/danielnordmark/Projects/Diet52App/Diet52App/obj/iPhoneSimulator/Release/mtouch-cache/main.i386.o -force_load /Users/danielnordmark/Projects/Diet52App/Diet52App/obj/iPhoneSimulator/Release/mtouch-cache/libTimesSquare.a -force_load /Users/danielnordmark/Projects/Diet52App/Diet52App/obj/iPhoneSimulator/Release/mtouch-cache/libiRate.a -force_load /Users/danielnordmark/Projects/Diet52App/Diet52App/obj/iPhoneSimulator/Release/mtouch-cache/TapstreamiOS.a -o /Users/danielnordmark/Projects/Diet52App/Diet52App/bin/iPhoneSimulator/Release/Diet52App.app/Diet52App -framework CFNetwork -framework QuartzCore -framework Foundation -framework CoreGraphics -framework MessageUI -framework UIKit -framework StoreKit -lz -liconv -u _mono_pmip -u _CreateZStream -u _CloseZStream -u _Flush -u _ReadZStream -u _WriteZStream -u _monotouch_start_wwan -u _monotouch_release_managed_ref -u _monotouch_create_managed_ref -u _xamarin_get_block_descriptor -u _monotouch_timezone_get_data -u _monotouch_log /Developer/MonoTouch/SDKs/MonoTouch.iphonesimulator.sdk/usr/lib/libmonoboehm-2.0.a /Developer/MonoTouch/SDKs/MonoTouch.iphonesimulator.sdk/usr/lib/libmonotouch-debug.a clang: error: unknown argument: '-cxx' [-Wunused-command-line-argument-hard-error-in-future] clang: note: this will be a hard error (cannot be downgraded to a warning) in the future
error MT5309: Native linking error: clang: error: unknown argument: '-cxx' [-Wunused-command-line-argument-hard-error-in-future]
error MT5309: Native linking error: clang: note: this will be a hard error (cannot be downgraded to a warning) in the future
error MT5202: Native linking failed. Please review the build log.
Anyone know what causes the error and how to fix it?