Created a sticker pack in Xcode following Apple's online directions and video. All images are correct dimensions and well below file size thresholds.
If I build and run the sticker pack to my physical iPhone it all works flawlessly.
If I build and run the sticker pack on simulator, to any simulated iPhone/iPad, iMessages launches, the icon for my sticker pack appears and then iMessage crashes. I receive the system error: "MobileSMS quit unexpectedly."
I'm running Xcode Version 9.0.1 (9A1004) on MacOS High Sierra 10.13. The error generated by Xcode is below. Any and all answers appreciated. It is important to note I did not write any code for the sticker pack, nor modify the code. It is all generated automatically by Xcode when building the sticker pack project.
2017-10-24 15:06:52.116813-0700 MobileSMS[2897:557106] [Warning] Splitview controller <UISplitViewControllerClassicImpl: 0x7fb10bf08a40> is expected to have a view controller at index 0 before it's used! 2017-10-24 15:06:52.289111-0700 MobileSMS[2897:557106] [MC] Loaded MobileCoreServices.framework 2017-10-24 15:06:52.364078-0700 MobileSMS[2897:557106] [Application] Restoring application state. isComposingNew=NO groupID=(null) 2017-10-24 15:06:52.622894-0700 MobileSMS[2897:557106] [Warning] IMBalloonPluginManager. Did not find any plugin for id com.apple.messages.browser.MorePlugin 2017-10-24 15:06:52.623092-0700 MobileSMS[2897:557106] [Warning] Could not determine if com.apple.messages.browser.MorePlugin is a recent or favorite! 2017-10-24 15:06:52.623246-0700 MobileSMS[2897:557106] [Warning] IMBalloonPluginManager. Did not find any plugin for id com.apple.messages.browser.MorePlugin 2017-10-24 15:06:52.911018-0700 MobileSMS[2897:557106] IMSendProgress: 0x600000278840 (delegate: 0x7fb10be02320, context: 0x7fb10e013800) is updating sending items from (null) to {}. (removed? 0, inserted? 0, forced? 1, hasSendingMessages? 0) 2017-10-24 15:06:52.936630-0700 MobileSMS[2897:557106] +[CATransaction synchronize] called within transaction 2017-10-24 15:06:52.936780-0700 MobileSMS[2897:557106] +[CATransaction synchronize] called within transaction 2017-10-24 15:06:52.936898-0700 MobileSMS[2897:557106] +[CATransaction synchronize] called within transaction 2017-10-24 15:06:52.951138-0700 MobileSMS[2897:557106] [Warning] Invalid parameters bundleIdentifier com.apple.siri.parsec.HashtagImagesApp.HashtagImagesExtension serverBag (null) 2017-10-24 15:06:52.954470-0700 MobileSMS[2897:557106] [Warning] Invalid parameters bundleIdentifier com.apple.icloud.apps.messages.business.extension serverBag (null) 2017-10-24 15:06:52.956249-0700 MobileSMS[2897:557106] [Warning] Invalid parameters bundleIdentifier com.hifidesign.Tennis-Anyone.StickerPackExtension serverBag (null) 2017-10-24 15:06:52.957857-0700 MobileSMS[2897:557106] [Warning] Invalid parameters bundleIdentifier com.apple.ActivityMessagesApp.MessagesExtension serverBag (null) 2017-10-24 15:06:52.959717-0700 MobileSMS[2897:557106] [Warning] IMBalloonPluginManager. Did not find any plugin for id com.apple.messages.browser.MorePlugin 2017-10-24 15:06:52.959925-0700 MobileSMS[2897:557106] [Warning] Could not determine if com.apple.messages.browser.MorePlugin is a recent or favorite! 2017-10-24 15:06:52.960175-0700 MobileSMS[2897:557106] [Warning] IMBalloonPluginManager. Did not find any plugin for id com.apple.messages.browser.MorePlugin objc[2897]: Class _MSMessageExtensionLoadingView is implemented in both /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/Library/CoreSimulator/Profiles/Runtimes/iOS.simruntime/Contents/Resources/RuntimeRoot/System/Library/Frameworks/Messages.framework/Messages (0x130fd28c0) and /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/Developer/Library/CoreSimulator/Profiles/Runtimes/iOS.simruntime/Contents/Resources/RuntimeRoot/System/Library/Messages/iMessageBalloons/MSMessageExtensionBalloonPlugin.bundle/MSMessageExtensionBalloonPlugin (0x130f9e0c8). One of the two will be used. Which one is undefined. 2017-10-24 15:06:57.602375-0700 MobileSMS[2897:557106] [Warning] IMBalloonPluginManager. Did not find any plugin for id com.apple.messages.browser.MorePlugin 2017-10-24 15:06:57.602562-0700 MobileSMS[2897:557106] [Warning] Could not determine if com.apple.messages.browser.MorePlugin is a recent or favorite! 2017-10-24 15:06:57.602831-0700 MobileSMS[2897:557106] [Warning] IMBalloonPluginManager. Did not find any plugin for id com.apple.messages.browser.MorePlugin 2017-10-24 15:06:58.888200-0700 MobileSMS[2897:557106] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'attempt to scroll to invalid index path: <NSIndexPath: 0x604000437940> {length = 2, path = 0 - 9223372036854775807}' *** First throw call stack: ( 0 CoreFoundation 0x0000000109a6f1cb __exceptionPreprocess + 171 1 libobjc.A.dylib 0x0000000108f8bf41 objc_exception_throw + 48 2 CoreFoundation 0x0000000109ae3b95 +[NSException raise:format:] + 197 3 UIKit 0x0000000106583cd6 -[UICollectionView _contentOffsetForScrollingToItemAtIndexPath:atScrollPosition:] + 212 4 UIKit 0x000000010658474c -[UICollectionView _scrollToItemAtIndexPath:atScrollPosition:animated:] + 70 5 ChatKit 0x00000001080b9311 -[CKBrowserSwitcherViewController(XCODE_DEVELOPMENT_SUPPORT) scrollCollectionViewToPlugin:] + 240 6 ChatKit 0x0000000108054b0f -[CKChatInputController _launchAppExtensionForDebugging] + 682 7 CoreFoundation 0x0000000109a0b07c __CFNOTIFICATIONCENTER_IS_CALLING_OUT_TO_AN_OBSERVER__ + 12 8 CoreFoundation 0x0000000109a0b00f ___CFXRegistrationPost_block_invoke + 63 9 CoreFoundation 0x0000000109a1220c __CFRUNLOOP_IS_CALLING_OUT_TO_A_BLOCK__ + 12 10 CoreFoundation 0x00000001099f6a3b __CFRunLoopDoBlocks + 203 11 CoreFoundation 0x00000001099f683b __CFRunLoopRun + 2875 12 CoreFoundation 0x00000001099f5a89 CFRunLoopRunSpecific + 409 13 GraphicsServices 0x000000010c53f9c6 GSEventRunModal + 62 14 UIKit 0x0000000105aa823c UIApplicationMain + 159 15 MobileSMS 0x0000000103b7e2b6 MobileSMS + 135862 16 libdyld.dylib 0x000000010af85d81 start + 1 ) libc++abi.dylib: terminating with uncaught exception of type NSException 
