Question

这是一个试驾示例“ https://flutter.io/get-started/test-drive/#terminal” 我遇到以下错误，请评论如何解决此问题。

Xcode's output:
↳
    === BUILD TARGET Runner OF PROJECT Runner WITH CONFIGURATION Debug ===
    clang-3.5: error: unknown argument: '-gmodules'
    clang-3.5: error: unknown argument: '-fbuild-session-file=/Users/nelson/Library/Developer/Xcode/DerivedData/ModuleCache.noindex/Session.modulevalidation'
    clang-3.5: error: no such file or directory: '/Users/nelson/Library/Developer/Xcode/DerivedData/Runner-ctvpprsqskddfxbtqtsepwpaebqm/Index/DataStore'
    clang-3.5: error: option '-fmodules-validate-once-per-build-session' requires '-fbuild-session-timestamp=<seconds since Epoch>'
    Command /usr/local/bin/clang-omp failed with exit code 1
    clang-3.5: error: unknown argument: '-gmodules'
    clang-3.5: error: unknown argument: '-fbuild-session-file=/Users/nelson/Library/Developer/Xcode/DerivedData/ModuleCache.noindex/Session.modulevalidation'
    clang-3.5: error: no such file or directory: '/Users/nelson/Library/Developer/Xcode/DerivedData/Runner-ctvpprsqskddfxbtqtsepwpaebqm/Index/DataStore'
    clang-3.5: error: option '-fmodules-validate-once-per-build-session' requires '-fbuild-session-timestamp=<seconds since Epoch>'
    Command /usr/local/bin/clang-omp failed with exit code 1
    === BUILD TARGET Runner OF PROJECT Runner WITH CONFIGURATION Debug ===
    error: the following command failed with exit code 1 but produced no further output
    CompileC /Users/nelson/Library/Developer/Xcode/DerivedData/Runner-ctvpprsqskddfxbtqtsepwpaebqm/Build/Intermediates.noindex/Runner.build/Debug-iphonesimulator/Runner.build/Objects-normal/x86_64/Runner_vers.o /Users/nelson/Library/Developer/Xcode/DerivedData/Runner-ctvpprsqskddfxbtqtsepwpaebqm/Build/Intermediates.noindex/Runner.build/Debug-iphonesimulator/Runner.build/DerivedSources/Runner_vers.c normal x86_64 c com.apple.compilers.llvm.clang.1_0.compiler
    clang-3.5: error: unknown argument: '-gmodules'
    clang-3.5: error: unknown argument: '-fbuild-session-file=/Users/nelson/Library/Developer/Xcode/DerivedData/ModuleCache.noindex/Session.modulevalidation'
    clang-3.5: error: no such file or directory: '/Users/nelson/Library/Developer/Xcode/DerivedData/Runner-ctvpprsqskddfxbtqtsepwpaebqm/Index/DataStore'
    clang-3.5: error: option '-fmodules-validate-once-per-build-session' requires '-fbuild-session-timestamp=<seconds since Epoch>'
    Command /usr/local/bin/clang-omp failed with exit code 1
    clang-3.5: error: unknown argument: '-gmodules'
    clang-3.5: error: unknown argument: '-fbuild-session-file=/Users/nelson/Library/Developer/Xcode/DerivedData/ModuleCache.noindex/Session.modulevalidation'
    clang-3.5: error: no such file or directory: '/Users/nelson/Library/Developer/Xcode/DerivedData/Runner-ctvpprsqskddfxbtqtsepwpaebqm/Index/DataStore'
    clang-3.5: error: option '-fmodules-validate-once-per-build-session' requires '-fbuild-session-timestamp=<seconds since Epoch>'
    Command /usr/local/bin/clang-omp failed with exit code 1
Could not build the application for the simulator.
Error launching application on iPhone 7 Plus.

Answer 1

我已经解决了以下问题：

如果仔细查看问题，它触发了clang 3.5的过时版本，我卸载了过时版本并安装了新版本。

从os x删除clang-omp
```
$ brew uninstall clang-omp
```
卸载clang-omp后，需要flutter安装程序才能更新到最新版本。实际上，我之前做了更新，但是我又做了一次。
```
$ flutter upgrade
```

我尝试再次运行flutter，但无法编译。它不见了clang-omp

$ flutter run    
=== BUILD TARGET Runner OF PROJECT Runner WITH CONFIGURATION Debug ===
    error: can't exec '/usr/local/bin/clang-omp' (No such file or directory)
    Command /usr/local/bin/clang-omp failed with exit code 71
    error: can't exec '/usr/local/bin/clang-omp' (No such file or directory)
    Command /usr/local/bin/clang-omp failed with exit code 71

因为在编译过程中需要更新的clang版本。我安装了llvm
```
$ brew install llvm
```

并相应地更新PATH。

echo 'export PATH="/usr/local/opt/llvm/bin:$PATH"' >> ~/.bash_profile

再次编译应用程序，它已成功编译。

$ flutter run
Launching lib/main.dart on iPhone 7 Plus in debug mode...
Starting Xcode build...                                          
├─Assembling Flutter resources...                    1.1s
└─Compiling, linking and signing...                  8.6s
Xcode build done.                                           11.3s
Syncing files to device iPhone 7 Plus...                     3.9s

  To hot reload changes while running, press "r". To hot restart (and rebuild state), press "R".
An Observatory debugger and profiler on iPhone 7 Plus is available at: http://127.0.0.1:8100/
For a more detailed help message, press "h". To quit, press "q".

Initializing hot reload...                                       
Reloaded 0 of 391 libraries in 486ms.

无法构建iOS应用（Xcode版本9.4.1（9F2000），Flutter 0.5.1）

1 个答案: