XCode 8, Qt 5.8, iOS app xCodeBuild error

[dl14]

I recently updated to MacOS and Xcode 8. Qt (5.8) wasn't working but I fixed it for Desktop applications using the following link. Now Qt works for desktop applications but not when I try to create iOS applications.

I can run QMake but when I try to deploy the app to my iPhone or run the simulator but when I try to build (and run it on the iPhone) I get the following message:

error: Xcodebuild failed.

When I try to run it on the simulator I get the following messages:

error: Failed to run -q -iphone -f 0 -rem text /Qt_Projects/build-HomeClient-iphonesimulator_clang_Qt_5_8_0_for_iOS-Debug/HomeClient.xcodeproj/Default-568h@2x.png /Users/DevLakhia14/Qt_Projects/build-HomeClient-iphonesimulator_clang_Qt_5_8_0_for_iOS-Debug/Debug-iphonesimulator/HomeClient.app/Default-568h@2x.png

error: Xcodebuild failed.

Any suggestions on how to fix this issue?

[SGaist]

Hi and welcome to devnet,

Are you experiencing the same with a default project ?

[dl14]

Yup, I tried it on the TouchInteraction example for iOS and the same thing happened

[GTDev]

What happens if you only choose "Run qmake" in Qt Creator (available with right-click on project), and then open the *.xcodeproj file that is created in the build directory.

Can you build / run the project with XCode or do you see a more detailed error then?

[ekkescorner]

@dl14 I have experienced similar behavior.
for me this helps:

• Build APP in QTCreator
• Open generated Xcode project in Xcode, select correct signing informations, wait until Xcode has compiled the project
• from now on it compiles and deploys from QtCreator

This happens only one time for each APP

[dl14]

This is the following error message I get when I build it in XCode after doing QMake in Qt:

Compress PNG File Error:
Command /Applications/Xcode.app/Contents/Developer/usr/bin/copypng failed with exit
code 255

[ekkescorner]

@dl14 those errors usually went away if you delete the build dir, clean project and build again