android - Undefined 不是一个对象(评估 'Sn[e]' )

Question

我在 Android 上遇到这个错误:

我在“index.android.bundle”中找到了代码行 'Sn[e]'，我已将其粘贴在下方 (ctrl/command + F):

for (var An in Sn) xn[An] = Sn[An];
 for (var Dn in wn) Pt(!Sn[Dn], "Event cannot be both direct and bubbling: %s", Dn), xn[Dn] = wn[Dn];
 var kn = {
   eventTypes: En({}, Sn, wn),
   extractEvents: function(e, t, n, o) {
    var r = Sn[e],
     i = wn[e],
     a = Pn.getPooled(r || i, t, n, o);
    if (r) fn.accumulateTwoPhaseDispatches(a);
    else {
     if (!i) return null;
     fn.accumulateDirectDispatches(a)
    }
    return a
   }
  },
  jn = kn,
  On = {
   handleTopLevel: function(e, t, n, o) {
    G(sn.extractEvents(e, t, n, o))
   }
  },
  Mn = On,
  Hn = 1,
  Un = {
   tagsStartAt: Hn,
   tagCount: Hn,
   allocateTag: function() {
    for (; this.reactTagIsNativeTopRootID(Un.tagCount);) Un.tagCount++;
    var e = Un.tagCount;
    return Un.tagCount++, e
   },
   assertRootTag: function(e) {
    It(this.reactTagIsNativeTopRootID(e), "Expect a native root tag, instead got %s", e)
   },
   reactTagIsNativeTopRootID: function(e) {
    return e % 10 == 1
   }
  },
  Fn = Un,
  Wn = null,
  Ln = {
   injectFiberControlledHostComponent: function(e) {
    Wn = e
   }
  },
  Bn = null,
  Yn = null,
  Vn = {
   injection: Ln,
   enqueueStateRestore: function(e) {
    Bn ? Yn ? Yn.push(e) : Yn = [e] : Bn = e
   },

看起来像一段 React 代码，因为它有 injectFiberControlledHostComponent，这看起来像 React Native Fiber。知道如何解决这个问题吗？

我在 android studio 中启动了该应用程序并且没有出现任何错误，因为该应用程序可以正常构建和安装。我确实在 android studio gradle 控制台中看到了这一点，但这可能不是问题所在:

Note: /Users/Ben/Development/Projects/vepo/frontend/android/app/src/main/java/com/vepo/MainApplication.java uses or overrides a deprecated API. Note: Recompile with -Xlint:deprecation for details.

Answer 1

我遇到了同样的问题，并通过将 app/build.gradle 更改为:

编译“com.facebook.react:react-native:+”


到

编译(“com.facebook.react:react-native:+”){
力=真；
}


另见:https://github.com/facebook/react-native/issues/17840