错误：未处理的异常：'package:flutter/src/widgets/navigator.dart'：断言失败：第 2845 行 pos 18：'！navigator._debugLocked'：不是 true

Question

我面临一个关于 的问题Unhandled Exception: 'package:flutter/src/widgets/navigator.dart': Failed assertion: line 2845 pos 18: '!navigator._debugLocked': is not true。

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这是我的调试控制台：

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E/flutter ( 5236): [ERROR:flutter/lib/ui/ui_dart_state.cc(198)] Unhandled Exception: 'package:flutter/src/widgets/navigator.dart': Failed assertion: line 2845 pos 18: '!navigator._debugLocked': is not true.\npackage:flutter/\xe2\x80\xa6/widgets/navigator.dart:2845\nE/flutter ( 5236): #0      _AssertionError._doThrowNew (dart:core-patch/errors_patch.dart:51:61)\nE/flutter ( 5236): #1      _AssertionError._throwNew (dart:core-patch/errors_patch.dart:40:5)\nE/flutter ( 5236): #2      _RouteEntry.handlePush.<anonymous closure>\npackage:flutter/\xe2\x80\xa6/widgets/navigator.dart:2845\nE/flutter ( 5236): #3      TickerFuture.whenCompleteOrCancel.thunk\npackage:flutter/\xe2\x80\xa6/scheduler/ticker.dart:407\nE/flutter ( 5236): #4      _rootRunUnary (dart:async/zone.dart:1434:47)\nE/flutter ( 5236): #5      _CustomZone.runUnary (dart:async/zone.dart:1335:19)\nE/flutter ( 5236): <asynchronous suspension>\nE/flutter ( 5236): #6      TickerFuture.whenCompleteOrCancel.thunk\npackage:flutter/\xe2\x80\xa6/scheduler/ticker.dart:406\nE/flutter ( 5236): <asynchronous suspension>\nE/flutter ( 5236):\n

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这是一些代码：

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Navigator.pop(context);\n

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我怎样才能解决这个问题？

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Answer 1

我想这应该可以解决。

WidgetsBinding.instance!.addPostFrameCallback((_) {
  Navigator.pushReplacement(context, MaterialPageRoute(builder: (_) => MyPage()));
});

从导航器弹出时抛出的错误中提取，直到：“！_debugLocked'：不是 true。”