Ios build error in app flow

I am having issues converting a phone gap app to ionic. It works perfectly on android but on the ios build I get the error below. Any ideas?

/Applications/Xcode.app/Contents/Developer/usr/bin/ibtool --errors --warnings --notices --module noTrace_ --target-device iphone --target-device ipad --minimum-deployment-target 10.0 --output-format human-readable-text --link /Users/ionic/Library/Developer/Xcode/DerivedData/noTrace!-gaqakybaxopwqsebyiqkzkomozbj/Build/Intermediates.noindex/ArchiveIntermediates/noTrace!/InstallationBuildProductsLocation/Applications/noTrace!.app /Users/ionic/Library/Developer/Xcode/DerivedData/noTrace!-gaqakybaxopwqsebyiqkzkomozbj/Build/Intermediates.noindex/ArchiveIntermediates/noTrace!/IntermediateBuildFilesPath/noTrace!.build/Debug-iphoneos/noTrace!.build/CDVLaunchScreen.storyboardc

This is output from an Appflow iOS build? Can you post more of the output logs, especially what comes before?