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I made an iMessage stickers pack on Xcode. When I tested it on my iPhone, clicking the build button and it would build successfully, but Xcode always said

could not attach to pid ####

On my cellphone, only the pack icon is visible. The photos and GIFs I add to the are all not found. The screenshots are listed below.

Screen shot of iPhone

Xcode

I've tried the methods provided by Pragnesh Vitthani but it doesn't work. The output is:

objc[313]: Class CKPPTSubTest is implemented in both /System/Library/PrivateFrameworks/ChatKit.framework/ChatKit (0x1a5a56ae0) and /Applications/MobileSMS.app/MobileSMS (0x1000d29a0). One of the two will be used. Which one is undefined. Context not created!Nov 30 16:06:26 MobileSMS[313] : CGContextSaveGState: invalid context 0x0. If you want to see the backtrace, please set CG_CONTEXT_SHOW_BACKTRACE environmental variable. Nov 30 16:06:26 MobileSMS[313] : CGContextDrawLinearGradient: invalid context 0x0. If you want to see the backtrace, please set CG_CONTEXT_SHOW_BACKTRACE environmental variable. Nov 30 16:06:26 MobileSMS[313] : CGContextRestoreGState: invalid context 0x0. If you want to see the backtrace, please set CG_CONTEXT_SHOW_BACKTRACE environmental variable. Nov 30 16:06:26 MobileSMS[313] : CGBitmapContextCreateImage: invalid context 0x0. If you want to see the backtrace, please set CG_CONTEXT_SHOW_BACKTRACE environmental variable.

Zephaniah Irvine
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1 Answers1

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  1. It is not a big issue, Please Remove Your app From Your iPhone and then Reinstall your app into iPhone.

    If you Run your app into simulator then goto on Simulator menu and select Reset content and Settings option.So your Simulator is reset and now reinstall your app in simulator.

  2. and, Check out your signing identity for each target (Targets > Signing > Team).Select your signing identity.

  3. and, On the device, go to Settings > General > Profiles & Device Management, tap on the profile name that authorized this app, and tap Trust.

    Hope it will help you...

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Pragnesh Vitthani
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  • Thanks. I delete the iMessage app on my cellphone but the stickers still don't show up. PS: It works in iOS Simulator. – Zephaniah Irvine Nov 30 '16 at 07:18
  • please Check out your signing identity for each target (Targets > Signing > Team).Select your signing identity. – Pragnesh Vitthani Nov 30 '16 at 07:31
  • I set the Targets' Code Signing Identity (Debug & Release) to iOS Developer. Development Team is set to Personal Team. It still doesn't work:( – Zephaniah Irvine Nov 30 '16 at 08:23
  • ok.pls try this,in your target (MessageExtension>Build Settings>Build Options>Enable Testability) is set to No in both Debug and Release options. – Pragnesh Vitthani Nov 30 '16 at 09:17
  • you can also set in (Build Settings>Linking>Dynamic Library Install Name) is set to "$(DYLIB_INSTALL_NAME_BASE:standardizepath)/$(EXECUTABLE_PATH)" – Pragnesh Vitthani Nov 30 '16 at 09:41
  • and you should also set in (Build Settings>Linking>Dynamic Library Install Name Base) is set to "@rpath" in both target project and MessageExtension.And you should also set in (Build Settings>Linking>Run Search paths) is set to @executable_path/../../Frameworks – Pragnesh Vitthani Nov 30 '16 at 09:47