Hello :) My iOS project does not work with SwiftUI Preview in Xcode 14 beta. The project builds and runs fine, but Preview never works. The error message is as follows. HumanReadableSwiftError SettingsError: noExecutablePath(<IDESwiftPackageStaticLibraryProductBuildable:ObjectIdentifier(0x000060002ac3e880):'AppCenterCrashes'>) I do use the AppCenterCrashes dependency in my project. But I'm not sure if this error message is accurate, because sometimes it reports other packages. After I executed Generate Report, I found the following error in SerializationErrors.txt. Error Domain=NSCocoaErrorDomain Code=516 "“LogCaffeineIntent.swift” couldn’t be linked to “Intermediates” because an item with the same name already exists." UserInfo={NSSourceFilePathErrorKey=/Users/gong/Library/Developer/Xcode/DerivedData/.../Build/Intermediates.noindex/HiCoffee.build/Debug-iphonesimulator/IntentsExtension.build/DerivedSources/IntentDefinitionGenerated/Intents/LogCaffeineIntent.swift, NSUserStringVariant=( Link ), NSDestinationFilePath=/var/folders/lv/58r5dhv52j779_qn41gnq4c80000gn/T/previews-diagnostics-20220608-144336/Intermediates/LogCaffeineIntent.swift, NSFilePath=/Users/gong/Library/Developer/Xcode/DerivedData/.../Build/Intermediates.noindex/HiCoffee.build/Debug-iphonesimulator/IntentsExtension.build/DerivedSources/IntentDefinitionGenerated/Intents/LogCaffeineIntent.swift, NSUnderlyingError=0x600033223810 {Error Domain=NSPOSIXErrorDomain Code=17 "File exists"}} The problem seems to be related to the Intent generation code. I don't know how to fix it yet.

Following the sample notes at https://developer.apple.com/documentation/widgetkit/creating-lock-screen-widgets-and-watch-complications, when I try to preview the Watch widget, I get an error saying: Cannot preview in this file WidgetEntryPointFactory' does not conform to NonUIEntryPoint RemoteHumanReadableError: Type 'WidgetEntryPointFactory' does not conform to NonUIEntryPoint (in framework at path /System/Library/PrivateFrameworks/ChronoCore.framework/Support/WidgetPreviewsExtensionAgent.bundle) ================================== |  MessageSendFailure: Message send failure for &lt;ServiceMessage 187: update&gt; App widgets preview fine though. Am I doing something obviously wrong?

SwiftUI Preview Don't work. Progress Preparing iPhone Simulator for Previews. SwiftUI Xcode version 13.0 macOS Big Sur version 11.6

My System 15” MacBook Pro late 2018 (Intel) macOS Monterey 12.1 Xcode 13.2.1 December 17, 2021 Command Line Tools for Xcode 13.2 December 13, 2021 Summary Live Preview The hardware keyboard does not work. Tapping a TextField invokes an invisible keyboard. Running on simulators from Preview fails. Running on real devices from Preview works. Except for these issues everything is working: Local packages and GitHub packages. Running schemes on simulators and real devices. XCTest UI tests on simulators and real devices. Update Timeline Dec 13, Using the App Store original 13.2 (13C90), no issues. Dec 14, Working on a UIKit based project - "This build requires an update”. The update did not affect the project. Switched to a SwiftUI based project and this error occurred: "Missing Package Description Module" [https://developer.apple.com/forums/thread/696504] Updated to Developer 13.2 (13C90) Everything is working except these issues persist. Dec 17, Updated to Developer Xcode 13.2.1 and this error occurred: "SwiftUI Previews Crash (i.e. cannot compile preview)" [https://developer.apple.com/forums/thread/696908] Executed this command and it fixed the issue (thanks forums!): rm -rf "$(getconf DARWIN_USER_CACHE_DIR)clang/ModuleCache" Everything is working except these issues persist. Demonstration SwiftUI App // //  ContentView.swift //  TestKB // Target: iOS 15.2, iPhone, Portrait import SwiftUI let usage = """ Xcode 13.2.1 (13C100) Preview Test The hardware keyboard does not work. Tap the TextField to invoke the invisible keyboard. Blindly tap in the invisible keyboard below the TextField to enter text. """ struct ContentView: View {     @State private var input = ""     var body: some View {         VStack(alignment: .leading) {             Spacer()             Text(usage)             TextField("TextField:", text: $input)                 .autocapitalization(.none)                 .disableAutocorrection(true)                 .border(Color.blue, width: 2)         }         .textFieldStyle(.roundedBorder)         .padding(5)     } } struct ContentView_Previews: PreviewProvider {     static var previews: some View {         Group {             ContentView()         }     } } // //  TestKBUITests.swift //  TestKBUITests // import XCTest class TestKBUITests: XCTestCase {     override func setUpWithError() throws {         continueAfterFailure = false     }     func testExample() throws {         let app = XCUIApplication()         app.launch()         XCTAssertTrue(app.textFields["TextField:"].exists)         let tf = app.textFields["TextField:"]         tf.tap()         tf.typeText("Buona giornata!")         XCTAssertEqual(tf.value as? String, "Buona giornata!")     } } Running On Simulator Devices From Preview Fails Sorry but I cannot upload the previews-diagnostics-20220108-214936.zip file because the file is blacked out in the Add File/Finder dialog. Running On Real Devices From Preview Succeed Live Previews Do Not Work Running the scheme on simulators and real devices works.

Even though beta 3 change logs claim there's a fix for the preview error Type 'WidgetEntryPointFactory' does not conform to 'NonUIEntryPoint', it is still an issue for me consistently. The previously accepted workaround for this issue also doesn't work for me anymore, which was: mv ~/Library/Developer/CoreSimulator/Caches/dyld{,_old} ; sudo killall -9 com.apple.CoreSimulator.CoreSimulatorService. What's a developer to do to get the preview working again? 🤓 Full diagnostics message I get: RemoteHumanReadableError: Type 'WidgetEntryPointFactory' does not conform to `NonUIEntryPoint` (in framework at path /System/Library/PrivateFrameworks/ChronoCore.framework/Support/WidgetPreviewsExtensionAgent.bundle) ================================== |  MessageSendFailure: Message send failure for <ServiceMessage 50: update> Xcode: Version 14.0 beta 3 (14A5270f)

I keep getting a Xcode Previews error in Xcode 12 from a package that imports other packages. As soon as I remove the dependency I'm able to see the SwiftUI preview. I'm only able to use previews in packages that have no dependencies The error I get is: "LoadingError: failed to load library at path...Library not loaded " then it point to the dependency that it could not load in the current package. How can I access Xcode Previews from a package that depends on other packages?

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Every time I work with Xcode Simulator or SwiftUI's Xcode Previews my Mac freezes and reboots. I get below report after restart: panic(cpu 1 caller 0xffffff7fae0e7505): "Submission on work queue 33 failed due to insufficient space!\n" @IGGuC.cpp:2899 Panicked task 0xffffff95219449c0: 4 threads: pid 1358: SimMetalHost Backtrace (CPU 1), panicked thread: 0xffffff9520c88540, Frame : Return Address 0xffffffe5a9882de0 : 0xffffff8015a81c8d 0xffffffe5a9882e30 : 0xffffff8015be1596 0xffffffe5a9882e70 : 0xffffff8015bd0963 0xffffffe5a9882ec0 : 0xffffff8015a21a70 0xffffffe5a9882ee0 : 0xffffff8015a8205d 0xffffffe5a9883000 : 0xffffff8015a81816 0xffffffe5a9883060 : 0xffffff8016315163 0xffffffe5a9883150 : 0xffffff7fae0e7505 0xffffffe5a9883160 : 0xffffff7fae05ecf7 0xffffffe5a9883250 : 0xffffff7fae084844 0xffffffe5a9883280 : 0xffffff7fae08f6e5 0xffffffe5a98832f0 : 0xffffff7fae9d75b7 0xffffffe5a9883330 : 0xffffff7fae06c73d 0xffffffe5a9883350 : 0xffffff7fae06cb5d 0xffffffe5a98833c0 : 0xffffff7fae09b89e 0xffffffe5a98835e0 : 0xffffff7fae070ed4 0xffffffe5a9883620 : 0xffffff7fae9ed118 0xffffffe5a9883650 : 0xffffff7fae070b00 0xffffffe5a9883690 : 0xffffff7fae9ed2a7 0xffffffe5a98836d0 : 0xffffff7fae9ed996 0xffffffe5a9883970 : 0xffffff7fae0714f4 0xffffffe5a98839a0 : 0xffffff7fae9ee8f1 0xffffffe5a9883a30 : 0xffffff7fae9ec94b 0xffffffe5a9883a90 : 0xffffff7fae9ec741 0xffffffe5a9883ae0 : 0xffffff7fae9eb81d 0xffffffe5a9883b20 : 0xffffff7fae071137 0xffffffe5a9883b60 : 0xffffff8016283a8c 0xffffffe5a9883cc0 : 0xffffff8015b872e6 0xffffffe5a9883dd0 : 0xffffff8015a5c9ab 0xffffffe5a9883e60 : 0xffffff8015a731f9 0xffffffe5a9883ef0 : 0xffffff8015bb35aa 0xffffffe5a9883fa0 : 0xffffff8015a22256 Kernel Extensions in backtrace: com.apple.iokit.IOAcceleratorFamily2(462.8)[F0D1B5AF-356A-3F86-8829-8F00218602CB]@0xffffff7fae9a6000->0xffffff7faea10fff dependency: com.apple.driver.AppleMobileFileIntegrity(1.0.5)[2B96E04B-E2A5-3296-AF14-6A766880A652]@0xffffff80171a1000->0xffffff80171c2fff dependency: com.apple.iokit.IOGraphicsFamily(597)[BBEE13AB-2291-37D9-AAE4-9E565E8950A5]@0xffffff7faeb3f000->0xffffff7faeb6dfff dependency: com.apple.iokit.IOPCIFamily(2.9)[654ABF9D-EB24-3B64-AB1C-EC2AC8357192]@0xffffff8018624000->0xffffff801864ffff dependency: com.apple.iokit.IOReportFamily(47)[5578189C-7C1D-3158-B357-F8D6A216DCE1]@0xffffff8018661000->0xffffff8018663fff dependency: com.apple.iokit.IOSurface(302.14)[F0BF8EFA-AA35-37B5-B3AB-A8BCF5E62024]@0xffffff8018794000->0xffffff80187b0fff com.apple.driver.AppleIntelKBLGraphics(18.0.7)[1A72DE92-F799-3EFF-8AD4-B662C53C36AD]@0xffffff7fae059000->0xffffff7fae117fff dependency: com.apple.iokit.IOAcceleratorFamily2(462.8)[F0D1B5AF-356A-3F86-8829-8F00218602CB]@0xffffff7fae9a6000->0xffffff7faea10fff dependency: com.apple.iokit.IOGraphicsFamily(597)[BBEE13AB-2291-37D9-AAE4-9E565E8950A5]@0xffffff7faeb3f000->0xffffff7faeb6dfff dependency: com.apple.iokit.IOPCIFamily(2.9)[654ABF9D-EB24-3B64-AB1C-EC2AC8357192]@0xffffff8018624000->0xffffff801864ffff dependency: com.apple.iokit.IOSurface(302.14)[F0BF8EFA-AA35-37B5-B3AB-A8BCF5E62024]@0xffffff8018794000->0xffffff80187b0fff Process name corresponding to current thread (0xffffff9520c88540): SimMetalHost (iPhone 12: default Boot args: chunklist-security-epoch=0 -chunklist-no-rev2-dev chunklist-security-epoch=0 -chunklist-no-rev2-dev Mac OS version: 21F79 Kernel version: Darwin Kernel Version 21.5.0: Tue Apr 26 21:08:22 PDT 2022; root:xnu-8020.121.3~4/RELEASE_X86_64 Kernel UUID: 3C587984-4004-3C76-8ADF-997822977184 KernelCache slide: 0x0000000015800000 KernelCache base: 0xffffff8015a00000 Kernel slide: 0x0000000015810000 Kernel text base: 0xffffff8015a10000 __HIB text base: 0xffffff8015900000 System model name: Macmini8,1 (Mac-7BA5B2DFE22DDD8C) System shutdown begun: NO Hibernation exit count: 0 System uptime in nanoseconds: 2335401059040 Last Sleep: absolute base_tsc base_nano Uptime : 0x0000021fc0c0295e Sleep : 0x000000c429fd13d9 0x00000000bae420b6 0x000000a6581a552b Wake : 0x000000c435bb1b42 0x00000000bae11627 0x000000c4332c18c2 Compressor Info: 24% of compressed pages limit (OK) and 12% of segments limit (OK) with 5 swapfiles and OK swap space Zone info: Zone map: 0xffffff805595c000 - 0xffffffa05595c000 . PGZ : 0xffffff805595c000 - 0xffffff805695d000 . VM : 0xffffff805695d000 - 0xffffff85233c3000 . RO : 0xffffff85233c3000 - 0xffffff86bcc8f000 . GEN0 : 0xffffff86bcc8f000 - 0xffffff8b896f5000 . GEN1 : 0xffffff8b896f5000 - 0xffffff905615b000 . GEN2 : 0xffffff905615b000 - 0xffffff9522bc1000 . GEN3 : 0xffffff9522bc1000 - 0xffffff99ef628000 . DATA : 0xffffff99ef628000 - 0xffffffa05595c000 Metadata: 0xffffffa079aee000 - 0xffffffa099aee000 Bitmaps : 0xffffffa099aee000 - 0xffffffa09caee000 last started kext at 1655076280961: >usb.cdc.acm 5.0.0 (addr 0xffffff7fae81d000, size 12288) last stopped kext at 1766102575761: >usb.serial 6.0.0 (addr 0xffffff7fae893000, size 20480) loaded kexts: AGPM 129 !APlatformEnabler 2.7.0d0 X86PlatformShim 1.0.0 @filesystems.autofs 3.0 !AGFXHDA 140.3 !AUpstreamUserClient 3.6.9 !AMCCSControl 1.16 !ABridgeAudio!C 240.6 !AGraphicsDevicePolicy 6.5.7 BridgeAudioCommunication 240.6 !AAVEBridge 6.1 !A!IKBLGraphics 18.0.7 @AGDCPluginDisplayMetrics 6.5.7 pmtelemetry 1 !A!ICFLGraphicsFramebuffer 18.0.7 |IOUserEthernet 1.0.1 usb.!UUserHCI 1 !A!IPCHPMC 2.0.1 !AHV 1 !ADiskImages2 126.100.13 !A!ISlowAdaptiveClocking 4.0.0 !AThunderboltIP 4.0.3 BCMWLANFirmware4387.Hashstore 1 BCMWLANFirmware4378.Hashstore 1 BCMWLANFirmware4377.Hashstore 1 BCMWLANFirmware4364.Hashstore 1 BCMWLANFirmware4355.Hashstore 1 !AFileSystemDriver 3.0.1 @filesystems.tmpfs 1 @filesystems.lifs 1 @filesystems.hfs.kext 583.100.10 @BootCache 40 @!AFSCompression.!AFSCompressionTypeZlib 1.0.0 @!AFSCompression.!AFSCompressionTypeDataless 1.0.0d1 @filesystems.apfs 1934.121.2 !ABCMWLANBusInterfacePCIeMac 1 !ASDXC 3.2.1 |!ABCM5701Ethernet 11.0.0 @private.KextAudit 1.0 !AACPIButtons 6.1 !ASMBIOS 2.1 !AACPIEC 6.1 !AAPIC 1.7 @!ASystemPolicy 2.0.0 @nke.applicationfirewall 402 |IOKitRegistryCompatibility 1 |EndpointSecurity 1 @Dont_Steal_Mac_OS_X 7.0.0 @kec.!AEncryptedArchive 1 !UMergeNub 900.4.2 IO!BHIDDriver 9.0.0 driverkit.serial 6.0.0 @kext.triggers 1.0 !ASMBus!C 1.0.18d1 !AAudioClockLibs 140.1 !A!ILpssUARTv1 3.0.60 !A!ILpssUARTCommon 3.0.60 !AOnboardSerial 1.0 usb.IOUSBHostHIDDevice 1.2 |IOAudio!F 340.2 @vecLib.kext 1.2.0 !AGraphicsControl 6.5.7 |IONDRVSupport 597 X86PlatformPlugin 1.0.0 .............. Below is my system configuration: Model Name: Mac mini Model Identifier: Macmini8,1 Processor Name: 6-Core Intel Core i5 Processor Speed: 3 GHz Number of Processors: 1 Total Number of Cores: 6 Memory: 8 GB System Version: macOS 12.4 (21F79) Any help would be appreciated, thanks!

Feedback is filed. Trying to look into the Core.swift. diagnostics: Unsupported: 'Consumer for unconverted(_StringProcessing.DSLTree._AST.Atom(ast:  ---------------------------------------- CrashReportError: Fatal Error in Core.swift UtilityScript crashed due to fatalError in Core.swift at line 77. 'try!' expression unexpectedly raised an error: Unsupported: 'Consumer for unconverted(_StringProcessing.DSLTree._AST.Atom(ast:  ))' Process: UtilityScript[3141] Date/Time: 2022-07-02 03:56:17 +0000 Log File: <none> Application Specific Information:     dyld [         dyld config: DYLD_LIBRARY_PATH=/Users/wangkeshijian/Library/Developer/Xcode/DerivedData/UtilityScript-frovasvohxblobefzbrrwtvqtyuu/Build/Intermediates.noindex/Previews/UtilityScript/Products/Debug DYLD_FRAMEWORK_PATH=/Users/wangkeshijian/Library/Developer/Xcode/DerivedData/UtilityScript-frovasvohxblobefzbrrwtvqtyuu/Build/Intermediates.noindex/Previews/UtilityScript/Products/Debug     ]     libswiftCore.dylib [         _StringProcessing/Core.swift:77: Fatal error: 'try!' expression unexpectedly raised an error: Unsupported: 'Consumer for unconverted(_StringProcessing.DSLTree._AST.Atom(ast:  ))'         /AppleInternal/Library/BuildRoots/0cc5e7ad-e86f-11ec-ac50-3e2aa58faa6a/Library/Caches/com.apple.xbs/Sources/swiftlang_overlay_Platform/swift-experimental-string-processing/Sources/_StringProcessing/ConsumerInterface.swift:200     ]

I'm trying to use Previews in a Swift Package in Xcode 14b2 but it's not working (it was working in Xcode 13). I have the following error message but I don't know how to solve it. "XCPreviewAgent.app" must be code signed in order to use on-device previews. Check your code signing settings for the target. com.apple.dt.UVPreviewAgent-watchOS.watchkitapp {     url: file:///Applications/Xcode-beta.app/Contents/Developer/Platforms/WatchOS.platform/Developer/Library/Xcode/Agents/XCPreviewAgent.app     version: 20.0.32.2     attributes: [         ObjectIdentifier(0x00000001638e5d18): ["OS_ACTIVITY_DT_MODE": "YES", "SQLITE_ENABLE_THREAD_ASSERTIONS": "1"],     ] }

The the enhancements to Xcode Previews in Xcode 14 are very helpful. I just had a situation where I wanted to take a screen capture of a preview of a view. Is there a built-in way to do that from Xcode, similar to taking a screen capture of the simulator screen? I realize I can just use a system-level screen capture, but then I have to adjust the size of what I capture to the area of the view in the preview. It would be great to just be able to have a button or shortcut and have the correct area captured.

that is also appearing when I click the "I" button in the preview error banner I am attempting to use the SwiftUI tutorial at https://developer.apple.com/tutorials/swiftui/building-lists-and-navigation (section 2) here is the code for the view that the preview is "crashing" on: import SwiftUI struct LandmarkRow: View {     var landmark: Landmark     var body: some View {         HStack {             landmark.image                 .resizable()                 .frame(width: 50, height: 50)             Text("landmark.name")                          Spacer()         }     } } struct LandmarkRow_Previews: PreviewProvider {     static var previews: some View {         LandmarkRow(landmark: landmarks[0])     } } Here is the code for the area it is having the problem: import Foundation var landmarks: [Landmark] = load("landmarkDelta.json") func load<T: Decodable>(_ filename: String) -> T {     let data: Data     guard let file = Bundle.main.url(forResource: filename, withExtension: nil)     else {         fatalError("Couldn't find (filename) in main bundle.")                  }     do {         data = try Data(contentsOf: file)     } catch {         fatalError("Couldn't load (filename) from main bundle:\n(error)")     }     do {         let decoder = JSONDecoder()         return try decoder.decode(T.self, from: data)     } catch {         fatalError("Couldn't parse (filename) as (T.self):\n(error)")     } } It is saying there is an error on line 17. Here is the line of code:         fatalError("Couldn't find (filename) in main bundle.") Here is the code from the Tutorial: import Foundation var landmarks: [Landmark] = load("landmarkData.json") func load<T: Decodable>(_ filename: String) -> T { let data: Data guard let file = Bundle.main.url(forResource: filename, withExtension: nil) else { fatalError("Couldn't find \(filename) in main bundle.") } do { data = try Data(contentsOf: file) } catch { fatalError("Couldn't load \(filename) from main bundle:\n\(error)") } do { let decoder = JSONDecoder() return try decoder.decode(T.self, from: data) } catch { fatalError("Couldn't parse \(filename) as \(T.self):\n\(error)") } } does anyone know what's wrong and how to fix it?

In Xcode 13, I can use groups to preview my views in different states: In Xcode 14 (Beta 1) groups are now rendered as tabs, making it way more difficult to verify all states after changes: Is there a way to toggle back to the old behavior - or is there any other container view that would be more suitable?

Getting this error when trying to preview an app on various devices. It's occurring when I select iPhone 13 and iPhone 11, but my previews work fine for iPod 7th Gen and iPhone 12. It's possible that this is because I have used those preview options in the past however. I've generated a report from the error, however the .zip is 400mb and it won't let me attach it to the post.

As some discussion suggested (https://developer.apple.com/forums/thread/683773), that the Live Preview debug function has been removed from Xcode 13 for some reason. I wonder what would be the best practice to debug a SwfitUI View when we have not yet established a path from the App's entry point to this View?