找不到“Frameworks/App.framework/flutter_assets”的资产路径

Question

我正在尝试在模拟器 ( iPhone 8 ) 上运行我的颤振应用程序，但是当应用程序启动时，我得到的只是一个空白的白色屏幕。像这样：

终端输出是：

Running pod install...                                             40.0s
Running Xcode build...                                                  

 ├─Assembling Flutter resources...                          20.4s
 └─Compiling, linking and signing...                        57.0s
Xcode build done.                                           288.8s
        path: satisfied (Path is satisfied), interface: en1
Failed to find assets path for "Frameworks/App.framework/flutter_assets"
Configuring the default Firebase app...
        path: satisfied (Path is satisfied), interface: en1
        path: satisfied (Path is satisfied), interface: en1
Configured the default Firebase app __FIRAPP_DEFAULT.
[VERBOSE-2:engine.cc(127)] Engine run configuration was invalid.
[VERBOSE-2:shell.cc(437)] Could not launch engine with configuration.
https://firebase.google.com/docs/cloud-messaging/ios/client#method_swizzling_in_firebase_messaging
to ensure proper integration.                                           
Syncing files to device iPhone 8...                                     
10,195ms (!)

我用的是flutter1.12.13+hotfix.9的稳定版，这个问题只出现在ios构建上。

我该如何解决这个问题？

Answer 1

在我的情况下，我需要在 Build Phrases -> Run Script 中取消选中“For install build only”的构建标志

Answer 2

首先，你应该在你的 android studio 终端中写下这个命令：

• rm -rf ios/Flutter/App.framework

• 然后在 Xcode 中选择 TARGETS 然后选择 Runner

• 然后从中间顶部选项中选择构建阶段

• 然后打开Thin Binary

• 删除里面的脚本

/bin/sh "$FLUTTER_ROOT/packages/flutter_tools/bin/xcode_backend.sh" 嵌入

/bin/sh "$FLUTTER_ROOT/packages/flutter_tools/bin/xcode_backend.sh" 瘦

这对我有用，希望对你也有用:-)

进一步阅读： https://flutter.dev/docs/development/ios-project-migration

Answer 3

您可以按照https://flutter.dev/docs/development/ios-project-migration中的说明进行操作

尤其是构建阶段：

/bin/sh "$FLUTTER_ROOT/packages/flutter_tools/bin/xcode_backend.sh" embed
/bin/sh "$FLUTTER_ROOT/packages/flutter_tools/bin/xcode_backend.sh" thin

您可以在此处查看更多信息： https://github.com/flutter/flutter/issues/52084#issuecomment-600768772

Answer 4

我刚刚设法解决了这个问题。我刚刚遵循了https://github.com/flutter/flutter/issues/29974 的建议并添加了 “$FLUTTER_ROOT/packages/flutter_tools/bin/xcode_backend.sh”嵌入 运行脚本 Run script 重建后 App.framework 文件夹已添加到构建目录，问题已经消失。 希望这对其他人有帮助。