ios - IOS : fatal error: module 'cloud_firestore' not found 上的 flutter

Question

在 github 和 stack 上搜索了很长时间以查找类似错误后，没有一个建议的解决方案可以帮助我解决此错误。
我尝试了很多东西(有点乱):

删除 IOS 派生数据

更改 Firestore 软件包版本

flutter 干净

rm -Rf ios/Pods

rm -Rf ios/.symlinks

rm -Rf ios/Flutter/Flutter.framework

rm -Rf ios/Flutter/Flutter.podspec

rm -rf ios/Podfile ios/Podfile.lock ios/Pods ios/Runner.xcworkspace

pod 初始化、安装和更新

取消注释平台 :ios, '9.0' from podfile (可能没有链接到这个问题)

这是错误:

    ** BUILD FAILED **


Xcode's output:
↳
    /Users/flo/Mobile/we_ll_see/ios/Runner/GeneratedPluginRegistrant.m:10:9: fatal error: module
    'cloud_firestore' not found
    @import cloud_firestore;
     ~~~~~~~^~~~~~~~~~~~~~~
    1 error generated.
    note: Using new build system
    note: Building targets in parallel
    note: Planning build
    note: Constructing build description

需要一些帮助

Answer 1

这是一个非常糟糕和不幸的错误。在尝试解决这个问题几个小时后，我终于找到了解决方案。问题是，您的 Podfile 没有使用 pubspec.yaml 文件进行更新。我认为，您的 Podfile 几乎是空的:

target 'Runner' do
 use_frameworks!

end

但这是个大问题。如果您尝试: $ rm Podfile 然后 $ pod init 将创建此 Podfile。
这是我的解决方案:
...但在此之前，您必须检查一些内容，否则我的解决方案可能无法正常工作:
跑:

$ pod install

如果此命令的结果是:

There are 0 dependencies from the Podfile and 0 total pods installed.

您可以肯定，此解决方案有效。否则它也会起作用，但也许你应该在评论中写下你的命令行结果!
现在回到解决方案...

步骤:使用以下代码更新您的 Podfile(请删除文件的旧内容):

 ENV['COCOAPODS_DISABLE_STATS'] = 'true'

 project 'Runner', {

   'Debug' => :debug,
   'Profile' => :release,
   'Release' => :release,
 }

 def flutter_root
   generated_xcode_build_settings_path = File.expand_path(File.join('..', 'Flutter', 'Generated.xcconfig'), __FILE__)
   unless File.exist?(generated_xcode_build_settings_path)
     raise "#{generated_xcode_build_settings_path} must exist. If you're running pod install manually, make sure flutter pub get is executed first"
   end

   File.foreach(generated_xcode_build_settings_path) do |line|
     matches = line.match(/FLUTTER_ROOT\=(.*)/)
     return matches[1].strip if matches
   end
   raise "FLUTTER_ROOT not found in #{generated_xcode_build_settings_path}. Try deleting Generated.xcconfig, then run flutter pub get"
 end

 require File.expand_path(File.join('packages', 'flutter_tools', 'bin', 'podhelper'), flutter_root)

 flutter_ios_podfile_setup

 target 'Runner' do
   use_frameworks!
   use_modular_headers!



   flutter_install_all_ios_pods File.dirname(File.realpath(__FILE__))
 end

 post_install do |installer|
   installer.pods_project.targets.each do |target|
     flutter_additional_ios_build_settings(target)
   end
 end

Now the Podfile is updating the pods you wrote down in your podspec.yaml file.

现在您必须通过调用将 podspec.yaml 文件与 xcode pod 同步:

$ pod install

然后你会看到你所有的 pod 都在下载。在此之后，您可以通过调用 flutter run 或仅在您的编辑器中运行您的 Flutter 项目。
注意:Podfile.lock 文件列出了 pod 和每个 pod 的版本。 'real' Podfile 仅用于 podspec.yaml 文件和真实 pod 之间的连接。如果您查看您的 Podfile.lock 文件，您会看到，没有任何 pod 被记录下来，这就是问题所在。如果没有要安装的 pod，则不会找到每个模块(例如“cloud-firestore”)...
我希望这个答案对您有所帮助，您可以在评论中问我是否有问题，但我知道，这不会发生:)
为 macOS 编辑:

platform :osx, '10.11'
ENV['COCOAPODS_DISABLE_STATS'] = 'true'
project 'Runner', {
 'Debug' => :debug,
 'Profile' => :release,
 'Release' => :release,
}
def flutter_root
generated_xcode_build_settings_path = 
File.expand_path(File.join('..', 'Flutter', 'ephemeral', 
'Flutter- 
Generated.xcconfig'), __FILE__)
unless File.exist?(generated_xcode_build_settings_path)
  raise "#{generated_xcode_build_settings_path} must exist. If 
you're running pod install manually, make sure \"flutter pub 
get\" 
is 
executed first"
  end

  File.foreach(generated_xcode_build_settings_path) do |line|
     matches = line.match(/FLUTTER_ROOT\=(.*)/)
     return matches[1].strip if matches
   end
   raise "FLUTTER_ROOT not found in #. 
{generated_xcode_build_settings_path}. Try deleting Flutter- 
Generated.xcconfig, then run \"flutter pub get\""
end

require File.expand_path(File.join('packages', 'flutter_tools', 
'bin', 'podhelper'), flutter_root)

flutter_macos_podfile_setup

target 'Runner' do
  use_frameworks!
  use_modular_headers!

  flutter_install_all_macos_pods 
File.dirname(File.realpath(__FILE__))
end

post_install do |installer|
  installer.pods_project.targets.each do |target|
    flutter_additional_macos_build_settings(target)
  end
end