目标平台： Android 目标操作系统版本/浏览器： minSdkVersion 21（android 5.0），targetSdkVersion 28（android 9） 设备：galaxy_nexus_api_23：5554 =>模拟器 我的开发机器。：
OS Name: Microsoft Windows 10 Enterprise
OS Version: 10.0.17763 N/A Build 17763
OS Manufacturer: Microsoft Corporation
OS Configuration: Standalone Workstation
OS Build Type: Multiprocessor Free
Registered Owner: N/A
Registered Organization: N/A
System Type: x64-based PC
Processor(s): 1 Processor(s) Installed.
[01]: Intel64 Family 6 Model 142 Stepping 9 GenuineIntel ~2701 Mhz
Windows Directory: C:\WINDOWS
System Directory: C:\WINDOWS\system32
Boot Device: \Device\HarddiskVolume1
System Locale: en-us;English (United States)
Total Physical Memory: 8,092 MB
Available Physical Memory: 2,497 MB
Virtual Memory: Max Size: 13,468 MB
Virtual Memory: Available: 7,171 MB
Virtual Memory: In Use: 6,297 MB
https://gist.github.com/AttalliAyoub/c4572d6f80f616b3229789f2ddf32b6a#file-flutter-run-verbose
Analyzing hanoti...
info - Unused import: 'package:hanoti/services/interfaces.dart' - lib\main.dart:9:8 - unused_import
info - This class (or a class which this class inherits from) is marked as '@immutable', but one or
more of its instance fields are not final: UserIcon._radius, UserIcon._border -
lib\pages\chat.dart:155:7 - must_be_immutable
info - The left operand uses '?.', so its value can be null - lib\pages\chat.dart:228:7 -
null_aware_before_operator
info - The value of the '?.' operator can be 'null', which isn't appropriate in a condition -
lib\pages\chat.dart:288:26 - null_aware_in_condition
info - This class (or a class which this class inherits from) is marked as '@immutable', but one or
more of its instance fields are not final: PickChat._chatService - lib\pages\pickChat.dart:14:7
- must_be_immutable
info - Unused import: 'package:font_awesome_flutter/font_awesome_flutter.dart' -
lib\pages\pickStore.dart:2:8 - unused_import
info - The left operand uses '?.', so its value can be null - lib\pages\pickStore.dart:71:27 -
null_aware_before_operator
info - The left operand uses '?.', so its value can be null - lib\pages\products.dart:38:11 -
null_aware_before_operator
info - Close instances of `dart.core.Sink` - lib\pages\searchForStore.dart:32:27 - close_sinks
info - The value of the local variable '_current' isn't used - lib\pages\showproduct.dart:21:9 -
unused_local_variable
info - Dead code - lib\pages\showproduct.dart:78:31 - dead_code
info - Use `;` instead of `{}` for empty constructor bodies - lib\pages\storeInfo.dart:6:25 -
empty_constructor_bodies
info - Prefer using /// for doc comments - lib\pages\videoCall.dart:5:1 - slash_for_doc_comments
info - Unused import: 'package:hanoti/services/resp.dart' - lib\pages\workspace.dart:9:8 -
unused_import
info - The value of the field '_profile' isn't used - lib\pages\workspace.dart:22:8 - unused_field
info - The left operand uses '?.', so its value can be null - lib\pages\workspace.dart:59:11 -
null_aware_before_operator
info - The left operand uses '?.', so its value can be null - lib\pages\workspace.dart:257:7 -
null_aware_before_operator
info - Close instances of `dart.core.Sink` - lib\services\auth.dart:27:25 - close_sinks
info - 'enablePersistence' is deprecated and shouldn't be used - lib\services\auth.dart:31:14 -
deprecated_member_use
info - 'enablePersistence' is deprecated and shouldn't be used - lib\services\chat.dart:10:14 -
deprecated_member_use
info - Name non-constant identifiers using lowerCamelCase - lib\services\interfaces.dart:22:10 -
non_constant_identifier_names
info - Name non-constant identifiers using lowerCamelCase - lib\services\interfaces.dart:23:10 -
non_constant_identifier_names
info - Name non-constant identifiers using lowerCamelCase - lib\services\interfaces.dart:24:10 -
non_constant_identifier_names
info - Name non-constant identifiers using lowerCamelCase - lib\services\interfaces.dart:25:10 -
non_constant_identifier_names
info - Name non-constant identifiers using lowerCamelCase - lib\services\interfaces.dart:26:10 -
non_constant_identifier_names
info - Name non-constant identifiers using lowerCamelCase - lib\services\interfaces.dart:62:10 -
non_constant_identifier_names
info - Name non-constant identifiers using lowerCamelCase - lib\services\interfaces.dart:65:10 -
non_constant_identifier_names
info - Name non-constant identifiers using lowerCamelCase - lib\services\interfaces.dart:66:10 -
non_constant_identifier_names
info - 'enablePersistence' is deprecated and shouldn't be used - lib\services\products.dart:46:14 -
deprecated_member_use
info - Close instances of `dart.core.Sink` - lib\services\resp.dart:8:25 - close_sinks
info - Close instances of `dart.core.Sink` - lib\services\resp.dart:9:27 - close_sinks
info - Close instances of `dart.core.Sink` - lib\services\store.dart:12:26 - close_sinks
info - Close instances of `dart.core.Sink` - lib\services\store.dart:13:31 - close_sinks
info - Close instances of `dart.core.Sink` - lib\services\store.dart:15:32 - close_sinks
info - 'enablePersistence' is deprecated and shouldn't be used - lib\services\store.dart:21:14 -
deprecated_member_use
info - The value of the '?.' operator can be 'null', which isn't appropriate as an operand of a
logical operator - lib\services\store.dart:128:28 - null_aware_in_logical_operator
info - This class (or a class which this class inherits from) is marked as '@immutable', but one or
more of its instance fields are not final: SearchAppBar.actions - lib\shared\searchBar.dart:5:7
- must_be_immutable
37 issues found. (ran in 66.5s)
[√] Flutter (Channel master, v1.10.15-pre.39, on Microsoft Windows [Version 10.0.17763.504], locale
en-US)
• Flutter version 1.10.15-pre.39 at C:\flutter
• Framework revision 2adda80c10 (5 days ago), 2019-10-09 16:58:41 -0700
• Engine revision e693192167
• Dart version 2.6.0 (build 2.6.0-dev.6.0 41d13f0ffe)
[√] Android toolchain - develop for Android devices (Android SDK version 29.0.2)
• Android SDK at C:\Android\android-sdk
• Android NDK location not configured (optional; useful for native profiling support)
• Platform android-29, build-tools 29.0.2
• ANDROID_HOME = C:\Android\android-sdk
• ANDROID_SDK_ROOT = C:\Android\android-sdk
• Java binary at: C:\Program Files\Android\Android Studio\jre\bin\java
• Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1343-b01)
• All Android licenses accepted.
[√] Visual Studio - develop for Windows (Visual Studio Community 2019 16.1.2)
• Visual Studio at E:\Program Files (x86)\Microsoft Visual Studio\2019\Community
• Visual Studio Community 2019 version 16.1.29001.49
[√] Android Studio (version 3.4)
• Android Studio at C:\Program Files\Android\Android Studio
• Flutter plugin version 38.1.1
• Dart plugin version 183.6270
• Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1343-b01)
[√] IntelliJ IDEA Community Edition (version 2019.2)
• IntelliJ at E:\Program Files\JetBrains\IntelliJ IDEA Community Edition 2019.2.3
• Flutter plugin version 40.0.4
• Dart plugin version 192.6817.14
[√] VS Code (version 1.39.1)
• VS Code at C:\Users\snake\AppData\Local\Programs\Microsoft VS Code
• Flutter extension version 3.5.1
[√] Connected device (2 available)
• SM G355H • 4203e926b406c100 • android-arm • Android 4.4.2 (API 19)
• Windows • Windows • windows-x64 • Microsoft Windows [Version 10.0.17763.504]
• No issues found!
答案 0 :(得分：1)
您可以在--profile模式下运行您的应用，并获得--release的性能，并在--debug模式下获得日志。
然后您可以找到未捕获的异常。
如果需要更多帮助以发现问题，请提供日志。
：心动
答案 1 :(得分：0)
您应尝试使用 flutter run --release 安装该应用。 这样，您将看到应用程序在崩溃期间引发什么样的错误。
此外，如果您尚未检查页面，则可以找到更多信息here。