React Native 应用程序在 Android 启动时崩溃：未找到 class "com.facebook.react.devsupport.DevSupportManagerImpl"

Question

我正在使用 React Native v 0.62.2，我也在尝试让我的项目运行ning 在 Android 上。到目前为止，我一直专注于 iOS 的开发，因此从未运行 Android 应用程序。现在我想运行 android 应用程序，但应用程序在启动画面显示后立即崩溃，堆栈跟踪如下：

    java.lang.RuntimeException: Unable to create application com.myapp.MainApplication: java.lang.RuntimeException: Requested enabled DevSupportManager, but DevSupportManagerImpl class was not found or could not be created
        at android.app.ActivityThread.handleBindApplication(ActivityThread.java:6612)
        at android.app.ActivityThread.access00(ActivityThread.java:233)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1896)
        at android.os.Handler.dispatchMessage(Handler.java:106)
        at android.os.Looper.loop(Looper.java:223)
        at android.app.ActivityThread.main(ActivityThread.java:7523)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:592)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:941)
     Caused by: java.lang.RuntimeException: Requested enabled DevSupportManager, but DevSupportManagerImpl class was not found or could not be created
        at com.facebook.react.devsupport.a.a(:90)
        at com.facebook.react.q.<init>(:238)
        at com.facebook.react.r.b(:281)
        at com.facebook.react.t.a(:87)
        at com.facebook.react.t.h(:39)
        at com.myapp.MainApplication.onCreate(:48)
        at android.app.Instrumentation.callApplicationOnCreate(Instrumentation.java:1192)
        at android.app.ActivityThread.handleBindApplication(ActivityThread.java:6607)
        at android.app.ActivityThread.access00(ActivityThread.java:233) 
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1896) 
        at android.os.Handler.dispatchMessage(Handler.java:106) 
        at android.os.Looper.loop(Looper.java:223) 
        at android.app.ActivityThread.main(ActivityThread.java:7523) 
        at java.lang.reflect.Method.invoke(Native Method) 
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:592) 
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:941) 
     Caused by: java.lang.ClassNotFoundException: com.facebook.react.devsupport.DevSupportManagerImpl
        at java.lang.Class.classForName(Native Method)
        at java.lang.Class.forName(Class.java:454)
        at java.lang.Class.forName(Class.java:379)
        at com.facebook.react.devsupport.a.a(:68)
        at com.facebook.react.q.<init>(:238) 
        at com.facebook.react.r.b(:281) 
        at com.facebook.react.t.a(:87) 
        at com.facebook.react.t.h(:39) 
        at com.myapp.MainApplication.onCreate(:48) 
        at android.app.Instrumentation.callApplicationOnCreate(Instrumentation.java:1192) 
        at android.app.ActivityThread.handleBindApplication(ActivityThread.java:6607) 
        at android.app.ActivityThread.access00(ActivityThread.java:233) 
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1896) 
        at android.os.Handler.dispatchMessage(Handler.java:106) 
        at android.os.Looper.loop(Looper.java:223) 
        at android.app.ActivityThread.main(ActivityThread.java:7523) 
        at java.lang.reflect.Method.invoke(Native Method) 
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:592) 
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:941) 
     Caused by: java.lang.ClassNotFoundException: Didn't find class "com.facebook.react.devsupport.DevSupportManagerImpl" on path: DexPathList[[zip file "/data/app/~~WocKG3K03wTNVqsJq3z5Xg==/com.myapp-F972FEHz8FF4xF-BTG7qlg==/base.apk"],nativeLibraryDirectories=[/data/app/~~WocKG3K03wTNVqsJq3z5Xg==/com.myapp-F972FEHz8FF4xF-BTG7qlg==/lib/x86, /data/app/~~WocKG3K03wTNVqsJq3z5Xg==/com.myapp-F972FEHz8FF4xF-BTG7qlg==/base.apk!/lib/x86, /system/lib, /system_ext/lib, /product/lib]]
        at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:207)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:379)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:312)
        at java.lang.Class.classForName(Native Method) 
        at java.lang.Class.forName(Class.java:454) 
        at java.lang.Class.forName(Class.java:379) 
        at com.facebook.react.devsupport.a.a(:68) 
        at com.facebook.react.q.<init>(:238) 
        at com.facebook.react.r.b(:281) 
        at com.facebook.react.t.a(:87) 
        at com.facebook.react.t.h(:39) 
        at com.myapp.MainApplication.onCreate(:48) 
        at android.app.Instrumentation.callApplicationOnCreate(Instrumentation.java:1192) 
        at android.app.ActivityThread.handleBindApplication(ActivityThread.java:6607) 
        at android.app.ActivityThread.access00(ActivityThread.java:233) 
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1896) 
        at android.os.Handler.dispatchMessage(Handler.java:106) 
        at android.os.Looper.loop(Looper.java:223) 
        at android.app.ActivityThread.main(ActivityThread.java:7523) 
        at java.lang.reflect.Method.invoke(Native Method) 
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:592) 
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:941)

我在网上搜索了解决方案或至少是提示，但遗憾的是没有找到任何解决方案，甚至没有找到解决此问题的任何想法。

有人知道吗？如果您需要任何进一步的信息以便能够回答问题，也请告诉我。

非常感谢！

Answer 1

对于所有也在为这个问题而苦苦挣扎的人 - 经过长时间的研究和反复试验，我终于解决了这个问题。

看来这个问题实际上与OK HTTP有关。让我得到它运行的步骤如下：

启用 MultiDex 但同时注意 AndroidX 解决方案（因为我使用的是最新版本的 React Native，它已经利用了 AndroidX），如以下答案所述：
按照以下评论中给出的说明添加 ProGuard 文件：https://github.com/facebook/react-native/issues/9043#issuecomment-298832659

React Native 应用程序在 Android 启动时崩溃：未找到 class "com.facebook.react.devsupport.DevSupportManagerImpl"

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