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Một phiên bản defaultFirebaseApp phải được cấu hình trước khi phiên bản defaultFirebaseApp có thể được khởi tạo

In lại 作者：行者123 更新时间：2023-12-01 19:29:07 28 4
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我尝试使用 FirebaseApp.configure() 配置 Firebase，但遇到以下崩溃:

 *** Terminating app due to uncaught exception 'com.firebase.installations', reason: 'The default FirebaseApp instance must be configured before the defaultFirebaseApp instance can be initialized. One way to ensure that is to call `[FIRApp configure];` (`FirebaseApp.configure()` in Swift) in the App Delegate's `application:didFinishLaunchingWithOptions:` (`application(_:didFinishLaunchingWithOptions:)` in Swift).'
*** First throw call stack:
(0x195b7180c 0x195899fa4 0x195a66f84 0x1081413dc 0x107c59bc0 0x107c59aec 0x10274daa0 0x10274d5c0 0x10274c8ec 0x10274c310 0x10274c25c 0x10244b52c 0x10244b434 0x10244b5c4 0x199bda698 0x102451ad4 0x195974360)
libc++abi.dylib: terminating with uncaught exception of type NSException

我尝试从 didFinishLaunchingWithOptions 内部以及 AppDelegate của khởi tạo 内部调用 FirebaseApp.configure() :

override init() {
        super.init()

        // Setting up the firebase instance
        setupFirebase()
    }

private func setupFirebase() {

        FirebaseApp.configure()

        Messaging.messaging().delegate = self    
    }

此时崩溃了 - Screenshot 2020-03-18 at 8 10 39 PM

我在我的 AppDelegate Sử dụng trong import FirebaseCore Và import FirebaseMessaging

Podfile.lock 看起来像这样

Firebase/Core (6.20.0):
    - Firebase/CoreOnly
    - FirebaseAnalytics (= 6.3.1)
  - Firebase/CoreOnly (6.20.0):
    - FirebaseCore (= 6.6.4)
  - Firebase/Database (6.20.0):
    - Firebase/CoreOnly
    - FirebaseDatabase (~> 6.1.4)
  - Firebase/Firestore (6.20.0):
    - Firebase/CoreOnly
    - FirebaseFirestore (~> 1.11.2)
  - Firebase/Messaging (6.20.0):
    - Firebase/CoreOnly
    - FirebaseMessaging (~> 4.3.0)
  - FirebaseAnalytics (6.3.1):
    - FirebaseCore (~> 6.6)
    - FirebaseInstallations (~> 1.1)
    - GoogleAppMeasurement (= 6.3.1)
    - GoogleUtilities/AppDelegateSwizzler (~> 6.0)
    - GoogleUtilities/MethodSwizzler (~> 6.0)
    - GoogleUtilities/Network (~> 6.0)
    - "GoogleUtilities/NSData+zlib (~> 6.0)"
    - nanopb (= 0.3.9011)
  - FirebaseAnalyticsInterop (1.5.0)
  - FirebaseAuthInterop (1.1.0)
  - FirebaseCore (6.6.4):
    - FirebaseCoreDiagnostics (~> 1.2)
    - FirebaseCoreDiagnosticsInterop (~> 1.2)
    - GoogleUtilities/Environment (~> 6.5)
    - GoogleUtilities/Logger (~> 6.5)
  - FirebaseCoreDiagnostics (1.2.2):
    - FirebaseCoreDiagnosticsInterop (~> 1.2)
    - GoogleDataTransportCCTSupport (~> 2.0)
    - GoogleUtilities/Environment (~> 6.5)
    - GoogleUtilities/Logger (~> 6.5)
    - nanopb (~> 0.3.901)
  - FirebaseCoreDiagnosticsInterop (1.2.0)
  - FirebaseDatabase (6.1.4):
    - FirebaseAuthInterop (~> 1.0)
    - FirebaseCore (~> 6.0)
    - leveldb-library (~> 1.22)
  - FirebaseFirestore (1.11.2):
    - abseil/algorithm (= 0.20190808)
    - abseil/base (= 0.20190808)
    - abseil/memory (= 0.20190808)
    - abseil/meta (= 0.20190808)
    - abseil/strings/strings (= 0.20190808)
    - abseil/time (= 0.20190808)
    - abseil/types (= 0.20190808)
    - FirebaseAuthInterop (~> 1.0)
    - FirebaseCore (~> 6.2)
    - "gRPC-C++ (= 0.0.9)"
    - leveldb-library (~> 1.22)
    - nanopb (~> 0.3.901)
  - FirebaseInstallations (1.1.0):
    - FirebaseCore (~> 6.6)
    - GoogleUtilities/UserDefaults (~> 6.5)
    - PromisesObjC (~> 1.2)
  - FirebaseInstanceID (4.3.2):
    - FirebaseCore (~> 6.6)
    - FirebaseInstallations (~> 1.0)
    - GoogleUtilities/Environment (~> 6.5)
    - GoogleUtilities/UserDefaults (~> 6.5)
  - FirebaseMessaging (4.3.0):
    - FirebaseAnalyticsInterop (~> 1.5)
    - FirebaseCore (~> 6.6)
    - FirebaseInstanceID (~> 4.3)
    - GoogleUtilities/AppDelegateSwizzler (~> 6.5)
    - GoogleUtilities/Environment (~> 6.5)
    - GoogleUtilities/Reachability (~> 6.5)
    - GoogleUtilities/UserDefaults (~> 6.5)
    - Protobuf (>= 3.9.2, ~> 3.9)

这是堆栈跟踪的样子:

 thread #1, queue = 'com.apple.main-thread', stop reason = signal SIGABRT
    frame #0: 0x0000000195969ec4 libsystem_kernel.dylib`__pthread_kill + 8
    frame #1: 0x0000000195885774 libsystem_pthread.dylib`pthread_kill$VARIANT$mp + 112
    frame #2: 0x00000001957d9844 libsystem_c.dylib`abort + 100
    frame #3: 0x00000001959327d4 libc++abi.dylib`abort_message + 128
    frame #4: 0x00000001959329c4 libc++abi.dylib`demangling_terminate_handler() + 296
    frame #5: 0x000000019589a258 libobjc.A.dylib`_objc_terminate() + 124
    frame #6: 0x000000019593f304 libc++abi.dylib`std::__terminate(void (*)()) + 16
    frame #7: 0x000000019593ec58 libc++abi.dylib`__cxxabiv1::failed_throw(__cxxabiv1::__cxa_exception*) + 32
    frame #8: 0x000000019593ec18 libc++abi.dylib`__cxa_throw + 124
    frame #9: 0x000000019589a0d0 libobjc.A.dylib`objc_exception_throw + 356
    frame #10: 0x0000000195a66f84 CoreFoundation`+[NSException raise:format:] + 108
  * frame #11: 0x0000000107f993dc LocationTrackingFW`+[FIRInstallations installations](self=FIRInstallations, _cmd="installations") at FIRInstallations.m:159:5
    frame #12: 0x0000000107ab1bc0 LocationTrackingFW`+[FIRAnalytics updateFirebaseInstallationID] + 32
    frame #13: 0x0000000107ab1aec LocationTrackingFW`+[FIRAnalytics startWithConfiguration:options:] + 564
    frame #14: 0x00000001025cdac0 Field Service`-[FIRApp configureCore](self=0x0000000280a1b510, _cmd="configureCore") at FIRApp.m:364:9
    frame #15: 0x00000001025cd5e0 Field Service`+[FIRApp addAppToAppDictionary:](self=0x00000001035a2f20, _cmd="addAppToAppDictionary:", app=0x0000000280a1b510) at FIRApp.m:317:7
    frame #16: 0x00000001025cc90c Field Service`+[FIRApp configureWithName:options:](self=0x00000001035a2f20, _cmd="configureWithName:options:", name=@"__FIRAPP_DEFAULT", options=0x0000000280a1b750) at FIRApp.m:202:5
    frame #17: 0x00000001025cc330 Field Service`+[FIRApp configureWithOptions:](self=0x00000001035a2f20, _cmd="configureWithOptions:", options=0x0000000280a1b750) at FIRApp.m:145:3
    frame #18: 0x00000001025cc27c Field Service`+[FIRApp configure](self=0x00000001035a2f20, _cmd="configure") at FIRApp.m:131:3
    frame #19: 0x00000001022cb54c Field Service`AppDelegate.setupFirebase(self=0x0000000109f08a00) at AppDelegate.swift:272:21
    frame #20: 0x00000001022cb454 Field Service`AppDelegate.init() at AppDelegate.swift:42:9
    frame #21: 0x00000001022cb5e4 Field Service`@objc AppDelegate.init() at :0
    frame #22: 0x0000000199bda698 UIKitCore`UIApplicationMain + 1728
    frame #23: 0x00000001022d1af4 Field Service`main at AppDelegate.swift:21:7
    frame #24: 0x0000000195974360 libdyld.dylib`start + 4

现在已经被困在这个问题上几个小时了。谁能帮我一下

1 Câu trả lời

此处为 Firebase 团队成员。大多数遇到此错误的人都意外地将 Firebase 的两份副本链接到他们的应用程序中，通常一份在应用程序目标中，一份在动态框架依赖项目标中。您可以通过检查运行时日志中是否有重复的类定义警告来检查是否有两个 Firebase 副本链接到您的应用。如果您看到类似的警告

objc[40943]: Class FIRApp is implemented in both
~/Library/Developer/Xcode/DerivedData/FrameworkTest-apqjxlyrxvkbhhafhaypsbdquref/Build/Products/Debug-iphonesimulator/DynamicFramework.framework/DynamicFramework
(0x10b2a87f8) and
~/Library/Developer/CoreSimulator/Devices/4821F959-24A6-4D78-A102-4C5703103D99/data/Containers/Bundle/Application/F017D210-113A-4DAF-9E17-BDE455E71E06/FrameworkTest.app/FrameworkTest
(0x10ad2d348). One of the two will be used. Which one is undefined.

这意味着您的应用运行时中有两个 Firebase 副本。以前，这不会使您的应用程序崩溃，但可能会导致其他未定义的行为，例如删除 Analytics 事件。我们最近对 FirebaseInstallations 进行了更改，导致其在启动时崩溃。如果您降级 Firebase 版本依赖项，即使您的应用在启动时没有崩溃，您仍然会出现未定义的行为。

不幸的是，您要么必须放弃动态框架方法并将所有依赖项直接链接到您的应用程序中，要么必须将动态框架更改为静态框架。将来，我们将探索将 Firebase 作为动态依赖项进行分发，以便用户可以将其链接到动态框架，而不必担心在运行时重复类定义。

Xem thêmthis doc on the Firebase iOS SDK GitHub了解更多详情。

编辑:您现在可以选择通过 CocoaPods 静态或动态链接 Firebase。有关更多详细信息，请参阅此文档:https://firebase.google.com/docs/ios/link-firebase-static-dynamic

关于ios - 必须先配置默认 FirebaseApp 实例，然后才能初始化 defaultFirebaseApp 实例，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/60753233/

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