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iOS Build a Simple iPhone App with Swift Deploying to a Device Running on a Device

Anuj Verma
Anuj Verma
11,825 Points
Posted by Anuj Verma
Anuj Verma
11,825 Points

Error when building on device

I am able to run the app in the simulator but when trying to run on device I get this error. The app gets to the launch screen then this is what I see in the console. Any help would be appreciated!

dyld: Library not loaded: @rpath/libswiftCore.dylib Referenced from: /private/var/mobile/Containers/Bundle/Application/94336830-57D3-4D9C-9592-14D44A771EFC/FunFacts.app/FunFacts Reason: no suitable image found. Did find: /private/var/mobile/Containers/Bundle/Application/94336830-57D3-4D9C-9592-14D44A771EFC/FunFacts.app/Frameworks/libswiftCore.dylib: mmap() error 1 at address=0x1000B0000, size=0x0018C000 segment=__TEXT in Segment::map() mapping /private/var/mobile/Containers/Bundle/Application/94336830-57D3-4D9C-9592-14D44A771EFC/FunFacts.app/Frameworks/libswiftCore.dylib

Running iOS 8.1.1 on device and XCode 6.1

cc Pasan Premaratne

6 Answers

Stuart Morris
Stuart Morris
2,062 Points
Stuart Morris
Stuart Morris
2,062 Points

Yeah me too, getting the exact same error message. Got an account and everything!

Michael Hulet
Michael Hulet
47,912 Points
Michael Hulet
Michael Hulet
47,912 Points

Make sure that you have signed up for a $99 per year iOS Developer Program membership, and you're logged into that account in Xcode. That's required to run the app on your device. Furthermore, if you have, you can update to the Xcode 6.2 beta and the iOS 8.2 beta as of yesterday

Anuj Verma
Anuj Verma
11,825 Points
Anuj Verma
Anuj Verma
11,825 Points

I have signed up and paid and logged in. That is how I am able to select my iPhone and hit run in the first place. The app loads up to the launch screen on my device but then crashes.

Armando Flores
Armando Flores
10,059 Points

"dyld: Library not loaded: @rpath/libswiftCore.dylib"

I am having the same issue as Anuj. Just created an account and also signed in with it.

rajiv jenveja
rajiv jenveja
2,405 Points

i'm in the exact same boat...getting the above message.

Keith Michelson
Keith Michelson
3,395 Points
Keith Michelson
Keith Michelson
3,395 Points

Same problem for me. Im still on mavericks, what OS are you guys on?

rajiv jenveja
rajiv jenveja
2,405 Points

I'm on mavericks as well...

Stuart Morris
Stuart Morris
2,062 Points
Stuart Morris
Stuart Morris
2,062 Points

Hi all ive found uptrading to Yosemite fixed this for me! Cheers!

Keith Michelson
Keith Michelson
3,395 Points
Keith Michelson
Keith Michelson
3,395 Points

Yeah, I just upgraded to Yosemite, fixed for me too. Now let's just hope my other software works with Yosemite.