为iOS编译已经工作了一段时间，我添加了一些依赖项，并切换到我的android emu一段时间了，现在它不会为iOS编译。
我试着制作一个新的项目并在iOS上运行，但我一直遇到同样的错误。
PubSpec：
dependencies:
flutter:
sdk: flutter
# The following adds the Cupertino Icons font to your application.
# Use with the CupertinoIcons class for iOS style icons.
cupertino_icons: ^1.0.2
google_maps_flutter: ^2.0.11
flutter_map: any # or the latest version on Pub
location: ^4.3.0
错误：
from /usr/local/bin/pod:23:in `<main>'
/System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in `require': cannot load such file -- 2.6/ffi_c (LoadError)
from /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in `require'
from /Library/Ruby/Gems/2.6.0/gems/ffi-1.15.4/lib/ffi.rb:3:in `<top (required)>'
2
from /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in `require'
from /Library/Ruby/Gems/2.6.0/gems/ethon-0.14.0/lib/ethon.rb:3:in `<top (required)>'
2
from /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in `require'
from /Library/Ruby/Gems/2.6.0/gems/typhoeus-1.4.0/lib/typhoeus.rb:2:in `<top (required)>'
2
from /System/Library/Frameworks/Ruby.framework/Versions/2.6/usr/lib/ruby/2.6.0/rubygems/core_ext/kernel_require.rb:54:in `require'
from /Library/Ruby/Gems/2.6.0/gems/cocoapods-core-1.11.0/lib/cocoapods-core/cdn_source.rb:440:in `download_typhoeus_impl_async'
from /Library/Ruby/Gems/2.6.0/gems/cocoapods-core-1.11.0/lib/cocoapods-core/cdn_source.rb:372:in `download_and_save_with_retries_async'
from /Library/Ruby/Gems/2.6.0/gems/cocoapods-core-1.11.0/lib/cocoapods-core/cdn_source.rb:365:in `download_file_async'
from /Library/Ruby/Gems/2.6.0/gems/cocoapods-core-1.11.0/lib/cocoapods-core/cdn_source.rb:338:in `download_file'
from /Library/Ruby/Gems/2.6.0/gems/cocoapods-core-1.11.0/lib/cocoapods-core/cdn_source.rb:53:in `refresh_metadata'
from /Library/Ruby/Gems/2.6.0/gems/cocoapods-core-1.11.0/lib/cocoapods-core/source.rb:31:in `initialize'
from /Library/Ruby/Gems/2.6.0/gems/cocoapods-core-1.11.0/lib/cocoapods-core/cdn_source.rb:30:in `initialize'
from /Library/Ruby/Gems/2.6.0/gems/cocoapods-core-1.11.0/lib/cocoapods-core/source/manager.rb:315:in `new'
from /Library/Ruby/Gems/2.6.0/gems/cocoapods-core-1.11.0/lib/cocoapods-core/source/manager.rb:315:in `block in source_from_path'
from /Library/Ruby/Gems/2.6.0/gems/cocoapods-core-1.11.0/lib/cocoapods-core/source/manager.rb:322:in `source_from_path'
from /Library/Ruby/Gems/2.6.0/gems/cocoapods-core-1.11.0/lib/cocoapods-core/source/manager.rb:331:in `block in aggregate_with_repos'
from /Library/Ruby/Gems/2.6.0/gems/cocoapods-core-1.11.0/lib/cocoapods-core/source/manager.rb:331:in `map'
from /Library/Ruby/Gems/2.6.0/gems/cocoapods-core-1.11.0/lib/cocoapods-core/source/manager.rb:331:in `aggregate_with_repos'
from /Library/Ruby/Gems/2.6.0/gems/cocoapods-core-1.11.0/lib/cocoapods-core/source/manager.rb:26:in `aggregate'
from /Library/Ruby/Gems/2.6.0/gems/cocoapods-core-1.11.0/lib/cocoapods-core/source/manager.rb:60:in `all'
from /Library/Ruby/Gems/2.6.0/gems/cocoapods-core-1.11.0/lib/cocoapods-core/source/manager.rb:393:in `source_with_url'
from /Library/Ruby/Gems/2.6.0/gems/cocoapods-1.11.0/lib/cocoapods/sources_manager.rb:22:in `find_or_create_source_with_url'
from /Library/Ruby/Gems/2.6.0/gems/cocoapods-1.11.0/lib/cocoapods/installer/analyzer.rb:178:in `block in sources'
from /Library/Ruby/Gems/2.6.0/gems/cocoapods-1.11.0/lib/cocoapods/installer/analyzer.rb:177:in `map'
from /Library/Ruby/Gems/2.6.0/gems/cocoapods-1.11.0/lib/cocoapods/installer/analyzer.rb:177:in `sources'
from /Library/Ruby/Gems/2.6.0/gems/cocoapods-1.11.0/lib/cocoapods/installer/analyzer.rb:1077:in `block in resolve_dependencies'
from /Library/Ruby/Gems/2.6.0/gems/cocoapods-1.11.0/lib/cocoapods/user_interface.rb:64:in `section'
from /Library/Ruby/Gems/2.6.0/gems/cocoapods-1.11.0/lib/cocoapods/installer/analyzer.rb:1076:in `resolve_dependencies'
from /Library/Ruby/Gems/2.6.0/gems/cocoapods-1.11.0/lib/cocoapods/installer/analyzer.rb:124:in `analyze'
from /Library/Ruby/Gems/2.6.0/gems/cocoapods-1.11.0/lib/cocoapods/installer.rb:416:in `analyze'
from /Library/Ruby/Gems/2.6.0/gems/cocoapods-1.11.0/lib/cocoapods/installer.rb:241:in `block in resolve_dependencies'
from /Library/Ruby/Gems/2.6.0/gems/cocoapods-1.11.0/lib/cocoapods/user_interface.rb:64:in `section'
from /Library/Ruby/Gems/2.6.0/gems/cocoapods-1.11.0/lib/cocoapods/installer.rb:240:in `resolve_dependencies'
from /Library/Ruby/Gems/2.6.0/gems/cocoapods-1.11.0/lib/cocoapods/installer.rb:161:in `install!'
from /Library/Ruby/Gems/2.6.0/gems/cocoapods-1.11.0/lib/cocoapods/command/install.rb:52:in `run'
from /Library/Ruby/Gems/2.6.0/gems/claide-1.0.3/lib/claide/command.rb:334:in `run'
from /Library/Ruby/Gems/2.6.0/gems/cocoapods-1.11.0/lib/cocoapods/command.rb:52:in `run'
from /Library/Ruby/Gems/2.6.0/gems/cocoapods-1.11.0/bin/pod:55:in `<top (required)>'
from /usr/local/bin/pod:23:in `load'
from /usr/local/bin/pod:23:in `<main>'
Exception: Error running pod install
Exited (sigterm)
您是否尝试卸载然后安装了cocoapods？
sudo gem uninstall cocoapods
brew install cocoapods