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[√] Flutter (Channel stable, 3.0.0, on Microsoft Windows [版本 10.0.17763.316], locale zh-CN)
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[√] Chrome - develop for the web
[√] Visual Studio - develop for Windows (Visual Studio Community 2019 16.11.15)
[!] Android Studio (not installed)
[√] VS Code (version 1.67.2)
[√] Connected device (3 available)
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! Doctor found issues in 2 categories.

══╡ EXCEPTION CAUGHT BY SERVICES LIBRARY ╞══════════════════════════════════════════════════════════
The following assertion was thrown during a platform message callback:
A KeyUpEvent is dispatched, but the state shows that the physical key is not pressed. If this occurs
in real application, please report this bug to Flutter. If this occurs in unit tests, please ensure
that simulated events follow Flutter's event model as documented in `HardwareKeyboard`. This was the
event: KeyUpEvent#4114e(physicalKey: PhysicalKeyboardKey#700e1(usbHidUsage: "0x000700e1", debugName:
"Shift Left"), logicalKey: LogicalKeyboardKey#00102(keyId: "0x200000102", keyLabel: "Shift Left",
debugName: "Shift Left"), character: null, timeStamp: 22:24:22.567074)
'package:flutter/src/services/hardware_keyboard.dart':
Failed assertion: line 441 pos 16: '_pressedKeys.containsKey(event.physicalKey)'

Either the assertion indicates an error in the framework itself, or we should provide substantially
more information in this error message to help you determine and fix the underlying cause.
In either case, please report this assertion by filing a bug on GitHub:
  https://github.com/flutter/flutter/issues/new?template=2_bug.md

When the exception was thrown, this was the stack:
#2      HardwareKeyboard._assertEventIsRegular.<anonymous closure>
(package:flutter/src/services/hardware_keyboard.dart:441:16)
#3      HardwareKeyboard._assertEventIsRegular (package:flutter/src/services/hardware_keyboard.dart:452:6)
#4      HardwareKeyboard.handleKeyEvent (package:flutter/src/services/hardware_keyboard.dart:544:5)
#5      KeyEventManager.handleRawKeyMessage (package:flutter/src/services/hardware_keyboard.dart:867:35)
#6      BasicMessageChannel.setMessageHandler.<anonymous closure>
(package:flutter/src/services/platform_channel.dart:77:49)
#7      BasicMessageChannel.setMessageHandler.<anonymous closure>
(package:flutter/src/services/platform_channel.dart:76:47)
#8      _DefaultBinaryMessenger.setMessageHandler.<anonymous closure> (package:flutter/src/services/binding.dart:380:35)#9      _DefaultBinaryMessenger.setMessageHandler.<anonymous closure> (package:flutter/src/services/binding.dart:377:46)#10     _invoke2.<anonymous closure> (dart:ui/hooks.dart:190:15)
#14     _invoke2 (dart:ui/hooks.dart:189:10)
#15     _ChannelCallbackRecord.invoke (dart:ui/channel_buffers.dart:42:5)
#16     _Channel.push (dart:ui/channel_buffers.dart:132:31)
#17     ChannelBuffers.push (dart:ui/channel_buffers.dart:329:17)
#18     PlatformDispatcher._dispatchPlatformMessage (dart:ui/platform_dispatcher.dart:589:22)
#19     _dispatchPlatformMessage (dart:ui/hooks.dart:89:31)
(elided 5 frames from class _AssertionError and dart:async)
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