?升級Mac后，Flutter項目里的ios項目運行 pod install報錯，?

遇到這種問題，不要著急去百度，大概看一下報錯信息，每個人遇到的問題都不一樣。

別人的解決方法并不一定適合你；

下面是報錯信息：

### Error```
LoadError - cannot load such file -- ffi_c
/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in `require'
/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in `require'
/Library/Ruby/Gems/2.6.0/gems/ffi-1.17.1-arm64-darwin/lib/ffi.rb:5:in `rescue in <top (required)>'
/Library/Ruby/Gems/2.6.0/gems/ffi-1.17.1-arm64-darwin/lib/ffi.rb:2:in `<top (required)>'
/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in `require'
/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in `require'
/Library/Ruby/Gems/2.6.0/gems/ethon-0.15.0/lib/ethon.rb:3:in `<top (required)>'
/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in `require'
/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in `require'
/Library/Ruby/Gems/2.6.0/gems/typhoeus-1.4.0/lib/typhoeus.rb:2:in `<top (required)>'
/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in `require'
/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in `require'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-core-1.15.2/lib/cocoapods-core/cdn_source.rb:440:in `download_typhoeus_impl_async'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-core-1.15.2/lib/cocoapods-core/cdn_source.rb:372:in `download_and_save_with_retries_async'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-core-1.15.2/lib/cocoapods-core/cdn_source.rb:365:in `download_file_async'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-core-1.15.2/lib/cocoapods-core/cdn_source.rb:338:in `download_file'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-core-1.15.2/lib/cocoapods-core/cdn_source.rb:284:in `ensure_versions_file_loaded'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-core-1.15.2/lib/cocoapods-core/cdn_source.rb:208:in `search'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-core-1.15.2/lib/cocoapods-core/source/aggregate.rb:83:in `block in search'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-core-1.15.2/lib/cocoapods-core/source/aggregate.rb:83:in `select'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-core-1.15.2/lib/cocoapods-core/source/aggregate.rb:83:in `search'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.15.2/lib/cocoapods/resolver.rb:416:in `create_set_from_sources'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.15.2/lib/cocoapods/resolver.rb:385:in `find_cached_set'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.15.2/lib/cocoapods/resolver.rb:360:in `specifications_for_dependency'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.15.2/lib/cocoapods/resolver.rb:165:in `search_for'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.15.2/lib/cocoapods/resolver.rb:274:in `block in sort_dependencies'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.15.2/lib/cocoapods/resolver.rb:267:in `each'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.15.2/lib/cocoapods/resolver.rb:267:in `sort_by'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.15.2/lib/cocoapods/resolver.rb:267:in `sort_by!'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.15.2/lib/cocoapods/resolver.rb:267:in `sort_dependencies'
/Library/Ruby/Gems/2.6.0/gems/molinillo-0.8.0/lib/molinillo/delegates/specification_provider.rb:60:in `block in sort_dependencies'
/Library/Ruby/Gems/2.6.0/gems/molinillo-0.8.0/lib/molinillo/delegates/specification_provider.rb:77:in `with_no_such_dependency_error_handling'
/Library/Ruby/Gems/2.6.0/gems/molinillo-0.8.0/lib/molinillo/delegates/specification_provider.rb:59:in `sort_dependencies'
/Library/Ruby/Gems/2.6.0/gems/molinillo-0.8.0/lib/molinillo/resolution.rb:754:in `push_state_for_requirements'
/Library/Ruby/Gems/2.6.0/gems/molinillo-0.8.0/lib/molinillo/resolution.rb:744:in `require_nested_dependencies_for'
/Library/Ruby/Gems/2.6.0/gems/molinillo-0.8.0/lib/molinillo/resolution.rb:727:in `activate_new_spec'
/Library/Ruby/Gems/2.6.0/gems/molinillo-0.8.0/lib/molinillo/resolution.rb:684:in `attempt_to_activate'
/Library/Ruby/Gems/2.6.0/gems/molinillo-0.8.0/lib/molinillo/resolution.rb:254:in `process_topmost_state'
/Library/Ruby/Gems/2.6.0/gems/molinillo-0.8.0/lib/molinillo/resolution.rb:182:in `resolve'
/Library/Ruby/Gems/2.6.0/gems/molinillo-0.8.0/lib/molinillo/resolver.rb:43:in `resolve'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.15.2/lib/cocoapods/resolver.rb:94:in `resolve'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.15.2/lib/cocoapods/installer/analyzer.rb:1082:in `block in resolve_dependencies'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.15.2/lib/cocoapods/user_interface.rb:64:in `section'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.15.2/lib/cocoapods/installer/analyzer.rb:1080:in `resolve_dependencies'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.15.2/lib/cocoapods/installer/analyzer.rb:125:in `analyze'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.15.2/lib/cocoapods/installer.rb:422:in `analyze'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.15.2/lib/cocoapods/installer.rb:244:in `block in resolve_dependencies'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.15.2/lib/cocoapods/user_interface.rb:64:in `section'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.15.2/lib/cocoapods/installer.rb:243:in `resolve_dependencies'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.15.2/lib/cocoapods/installer.rb:162:in `install!'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.15.2/lib/cocoapods/command/install.rb:52:in `run'
/Library/Ruby/Gems/2.6.0/gems/claide-1.0.3/lib/claide/command.rb:334:in `run'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.15.2/lib/cocoapods/command.rb:52:in `run'
/Library/Ruby/Gems/2.6.0/gems/cocoapods-1.15.2/bin/pod:55:in `<top (required)>'
/usr/local/bin/pod:23:in `load'
/usr/local/bin/pod:23:in `<main>'
```――― TEMPLATE END ――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――――[!] Oh no, an error occurred.Search for existing GitHub issues similar to yours:
https://github.com/CocoaPods/CocoaPods/search?q=cannot+load+such+file+--+ffi_c&type=IssuesIf none exists, create a ticket, with the template displayed above, on:
https://github.com/CocoaPods/CocoaPods/issues/newBe sure to first read the contributing guide for details on how to properly submit a ticket:
https://github.com/CocoaPods/CocoaPods/blob/master/CONTRIBUTING.mdDon't forget to anonymize any private data!Looking for related issues on cocoapods/cocoapods...- when I try to install pod 'GoogleMobileAdsMediationFacebook',   show errorhttps://github.com/CocoaPods/CocoaPods/issues/12635 [open] [5 comments]23 Nov 2024- LoadError - cannot load such file -- ffi_chttps://github.com/CocoaPods/CocoaPods/issues/12538 [closed] [3 comments]2 weeks ago- LoadError - cannot load such file -- ffi_chttps://github.com/CocoaPods/CocoaPods/issues/12440 [closed] [19 comments]5 weeks agoand 12 more at:
https://github.com/cocoapods/cocoapods/search?q=cannot%20load%20such%20file%20--%20ffi_c&type=Issues&utf8=?

首先，找到了主要報錯信息：?

LoadError - cannot load such file -- ffi_c?

就是這一行， 我一看難道是 ffi 的問題？？

于是， 就用下面這一行安裝試一下； 結(jié)果？？?

brew install ffi

結(jié)果，它就報了以下搞笑的信息：

Warning: You are using macOS 15.
We do not provide support for this pre-release version.
It is expected behaviour that some formulae will fail to build in this pre-release version.
It is expected behaviour that Homebrew will be buggy and slow.
Do not create any issues about this on Homebrew's GitHub repositories.
Do not create any issues even if you think this message is unrelated.
Any opened issues will be immediately closed without response.
Do not ask for help from Homebrew or its maintainers on social media.
You may ask for help in Homebrew's discussions but are unlikely to receive a response.
Try to figure out the problem yourself and submit a fix as a pull request.
We will review it but may or may not accept it.Error: unknown or unsupported macOS version: :dunno  

我去， Homebrew這么Dior的嗎？ 好吧，接下來需要先解決這個 Homebrew 在 macOS 15上不能用的問題， 我是用 Homebrew 比較多的，好多工具都是用的 brew 安裝的。

經(jīng)過一頓搜索，在蘋果開發(fā)社區(qū)找到了答案：運行下面一行就能解決問題了。?

??brew update-reset

OK ， Homebrew 修好了，就趕緊 brew install ffi 試一試， 發(fā)現(xiàn)報錯依舊。

于是，就又再次去看一下報錯信息， 然后就發(fā)現(xiàn)報錯信息里，頻繁得在使用 ruby ，然后就查看了我的ruby版本， 又結(jié)合 AI 的回答，才發(fā)現(xiàn)，是蘋果自帶的ruby版本太低了， 這也是報錯的原因。

然后，我就去安裝了

brew install ruby ?

安裝完后， 運行

head -n 1 $(which pod)

來查一下， 它還會不會依賴舊版本的 ruby。 發(fā)現(xiàn)它還是依賴的舊版本。?

解決辦法是，去環(huán)境變量配置， 我的是 ~/.bash_profile ，路徑修改為你新安裝的ruby文件夾路徑 。?

export HOMEBREW_RUBY_PATH=$(which ruby)

我的路徑是這樣的：

export HOMEBREW_RUBY_PATH="/usr/local/opt/ruby/bin/ruby"

配置環(huán)境變量前，最好提前把 cocoapods 卸載。

然后就重新安裝 cocoapods

brew install cocoapods

這時候重新安裝的話，他就能依賴我們新安裝的ruby了。?

運行下面這個， 可以驗證一下，到底對不對。?

which pod
head -n 1 $(which pod)

cocoapods 安裝完后， 再去pod install， 就都正常了， 熟悉的畫面回來了。?