Flutter: 在新创建的项目上使用“--local-engine”运行时，pod 安装步骤失败

创建于 2017-04-03 · 3评论 · 资料来源: flutter/flutter

重现步骤

flutter create foobar
cd foobar
打开ios/Runner.xcworkspace并设置签名
flutter run --local-engine ios_debug_unopt -d mydevice -v

输出：

[ +592 ms
] Launching lib/main.dart on the Doom Melon in debug mode...

[   +1 ms] /Users/cbracken/.homebrew/bin/idevicesyslog
[   +2 ms] Building Runner.app for 956919950000126a7f5aaf03cbd5fbc18ac75e65
[   +7 ms] xcodebuild -version
[ +101 ms
] Exit code 0 from: xcodebuild -version
[        ] Xcode 8.3
           Build version 8E162
[   +1 ms] python -c import six
[  +33 ms] Trying to resolve native pub services.
[   +1 ms] Looking for YAML at 'pubspec.yaml'
[  +37 ms] No services specified in the manifest
[        ] Found 0 service definition(s).
[        ] Copying service frameworks to '/Users/cbracken/src/text_input/ios/Frameworks'.
[        ] Creating service definitions manifest at 'ios/ServiceDefinitions.json'
[  +39 ms] pod --version
[ +362 ms
] pod --version
[ +360 ms
] Exit code 0 from: pod --version
[        ] 1.2.0
[   +1 ms] Running pod install...

[   +1 ms] [ios/] pod install
[ +663 ms
] Analyzing dependencies
                    Fetching podspec for `Flutter` from `/Users/cbracken/src/flutter/engine/src/out/ios_debug_unopt`
                    [!] No podspec found for `Flutter` in `/Users/cbracken/src/flutter/engine/src/out/ios_debug_unopt`
[   +2 ms] 'flutter run' took 4061ms.
Error running pod install: Exit code 1 from: pod install

#0      throwToolExit (package:flutter_tools/src/base/common.dart:29)
#1      _runPodInstall (package:flutter_tools/src/ios/mac.dart:365)
<asynchronous suspension>
#2      buildXcodeProject (package:flutter_tools/src/ios/mac.dart:156)
<asynchronous suspension>
#3      IOSDevice.startApp (package:flutter_tools/src/ios/devices.dart:205)
<asynchronous suspension>
#4      HotRunner.run (package:flutter_tools/src/run_hot.dart:200)
<asynchronous suspension>
#5      RunCommand.runCommand (package:flutter_tools/src/commands/run.dart:281)
<asynchronous suspension>
#6      FlutterCommand.verifyThenRunCommand (package:flutter_tools/src/runner/flutter_command.dart:151)
<asynchronous suspension>
#7      RunCommand.verifyThenRunCommand (package:flutter_tools/src/commands/run.dart:196)
<asynchronous suspension>
#8      FlutterCommand.run (package:flutter_tools/src/runner/flutter_command.dart:121)
#9      CommandRunner.runCommand (package:args/command_runner.dart:194)
<asynchronous suspension>
#10     FlutterCommandRunner.runCommand (package:flutter_tools/src/runner/flutter_command_runner.dart:261)
<asynchronous suspension>
#11     CommandRunner.run.<anonymous closure> (package:args/command_runner.dart:109)
#12     Future.Future.sync (dart:async/future.dart:208)
#13     CommandRunner.run (package:args/command_runner.dart:109)
#14     FlutterCommandRunner.run (package:flutter_tools/src/runner/flutter_command_runner.dart:157)
#15     run.<anonymous closure> (package:flutter_tools/executable.dart:140)
<asynchronous suspension>
#16     AppContext._run (package:flutter_tools/src/base/context.dart:76)
<asynchronous suspension>
#17     AppContext.runInZone.<anonymous closure> (package:flutter_tools/src/base/context.dart:66)
#18     _rootRun (dart:async/zone.dart:1120)
#19     _CustomZone.run (dart:async/zone.dart:1001)
#20     runZoned (dart:async/zone.dart:1465)
#21     AppContext.runInZone (package:flutter_tools/src/base/context.dart:65)
#22     run (package:flutter_tools/executable.dart:113)
<asynchronous suspension>
#23     main (package:flutter_tools/executable.dart:66)
<asynchronous suspension>
#24     main (file:///Users/cbracken/src/flutter/flutter/packages/flutter_tools/bin/flutter_tools.dart:8)
#25     _startIsolate.<anonymous closure> (dart:isolate-patch/isolate_patch.dart:263)
#26     _RawReceivePortImpl._handleMessage (dart:isolate-patch/isolate_patch.dart:151)


[  +46 ms] ensureAnalyticsSent: 38ms
[   +1 ms] exiting with code 1

regression tool

资料来源

cbracken

最有用的评论

你好，
我最近遇到了同样的问题，但是，我使用了不同的方法。
我需要用pod update更新 pod

这导致了这个错误：

Please set FLUTTER_FRAMEWORK_DIR to the directory containing Flutter.framework

[!] Invalid 'Podfile' file: Please set FLUTTER_FRAMEWORK_DIR to the directory containing Flutter.framework.

 #  from /path-to/flutter/examples/platform_view/ios/Podfile:5
 #  -------------------------------------------
 #  if ENV['FLUTTER_FRAMEWORK_DIR'] == nil
 >    abort('Please set FLUTTER_FRAMEWORK_DIR to the directory containing Flutter.framework')
 #  end
 #  -------------------------------------------

在 DuckDuckGo 上进行了一些搜索后，我尝试了这个解决方案

export FLUTTER_FRAMEWORK_DIR=/path-to/flutter/bin/cache/artifacts/engine/ios

并重新运行pod update和flutter run

这似乎奏效了！

有没有更好的方法来解决这个问题？

谢谢

nisdis 于 2018-01-20

👍3

所有3条评论

/cc @jakobr-google 在引擎方面我需要做些什么吗？

基于ios/Podfile ，看起来我们正在$FLUTTER_FRAMEWORK_DIR中寻找 Flutter 的 podspec。当我在没有--local-engine的情况下运行时，该环境变量似乎指向缓存的引擎位置（ bin/cache/artifacts/engine/ios ），在那里我看到了Flutter.podspec 。使用本地引擎运行时，它指向引擎的构建目录（在我的情况下， /Users/cbracken/src/flutter/engine/src/out/ios_debug_unopt ），我看不到该文件。

我可以通过在我的本地引擎目录中添加一个符号链接的 Flutter.podspec 来解决这个问题，但是让它自动工作会很好。（除非我在某处遗漏了一步？）

cbracken 于 2017-04-03

是的，我们应该在构建时将shell/platform/darwin/ios/framework/Flutter.podspec复制到引擎的构建目录。我在添加文件时错过了这一点。 buildbot recipe 会上传文件，这就是您在缓存中看到它的原因。

jakobr-google 于 2017-04-04