Flutter: Error running pod install

xumin@xumindeMacBook-Pro flu_blue % flutter run
Launching lib/main.dart on iPhone 8 in debug mode... Running pod install... 318.0s CocoaPods' output: ↳ Preparing

Analyzing dependencies

Inspecting targets to integrate
  Using `ARCHS` setting to build architectures of target `Pods-Runner`: (``)

Fetching external sources
-> Fetching podspec for `Flutter` from `Flutter`
-> Fetching podspec for `flutter_blue` from `.symlinks/plugins/flutter_blue/ios`

这里省略很多。。。。

-> Installing Flutter (1.0.0)

-> Installing Protobuf (3.11.4)
 > Git download
 > Git download
     $ /usr/local/bin/git clone https://github.com/protocolbuffers/protobuf.git
     /var/folders/k8/p7j2dm4x32nbl209qg_qn4mm0000gn/T/d20210330-2420-12mtj3j --template= --single-branch --depth 1
     --branch v3.11.4

[!] Error installing Protobuf
[!] /usr/local/bin/git clone https://github.com/protocolbuffers/protobuf.git
/var/folders/k8/p7j2dm4x32nbl209qg_qn4mm0000gn/T/d20210330-2420-12mtj3j --template= --single-branch --depth 1 --branch
v3.11.4

Cloning into '/var/folders/k8/p7j2dm4x32nbl209qg_qn4mm0000gn/T/d20210330-2420-12mtj3j'...
fatal: unable to access 'https://github.com/protocolbuffers/protobuf.git/': Operation timed out after 300028
milliseconds with 0 out of 0 bytes received

/Users/xumin/.rvm/gems/ruby-2.4.1@global/gems/cocoapods-1.10.1/lib/cocoapods/downloader.rb:142:in `rescue in
execute_command'
/Users/xumin/.rvm/gems/ruby-2.4.1@global/gems/cocoapods-1.10.1/lib/cocoapods/downloader.rb:140:in `execute_command'
/Users/xumin/.rvm/gems/ruby-2.4.1@global/gems/cocoapods-downloader-1.4.0/lib/cocoapods-downloader/base.rb:166:in `block
in executable'
/Users/xumin/.rvm/gems/ruby-2.4.1@global/gems/cocoapods-downloader-1.4.0/lib/cocoapods-downloader/git.rb:100:in `block
in clone'
/Users/xumin/.rvm/gems/ruby-2.4.1@global/gems/cocoapods-1.10.1/lib/cocoapods/downloader.rb:173:in `block in
ui_sub_action'
/Users/xumin/.rvm/gems/ruby-2.4.1@global/gems/cocoapods-1.10.1/lib/cocoapods/user_interface.rb:64:in `section'
/Users/xumin/.rvm/gems/ruby-2.4.1@global/gems/cocoapods-1.10.1/lib/cocoapods/downloader.rb:172:in `ui_sub_action'
/Users/xumin/.rvm/gems/ruby-2.4.1@global/gems/cocoapods-downloader-1.4.0/lib/cocoapods-downloader/git.rb:98:in `clone'
/Users/xumin/.rvm/gems/ruby-2.4.1@global/gems/cocoapods-downloader-1.4.0/lib/cocoapods-downloader/git.rb:66:in
`download!'
/Users/xumin/.rvm/gems/ruby-2.4.1@global/gems/cocoapods-downloader-1.4.0/lib/cocoapods-downloader/base.rb:82:in `block
in download'
/Users/xumin/.rvm/gems/ruby-2.4.1@global/gems/cocoapods-1.10.1/lib/cocoapods/downloader.rb:157:in `block in ui_action'
/Users/xumin/.rvm/gems/ruby-2.4.1@global/gems/cocoapods-1.10.1/lib/cocoapods/user_interface.rb:64:in `section'
/Users/xumin/.rvm/gems/ruby-2.4.1@global/gems/cocoapods-1.10.1/lib/cocoapods/downloader.rb:156:in `ui_action'
/Users/xumin/.rvm/gems/ruby-2.4.1@global/gems/cocoapods-downloader-1.4.0/lib/cocoapods-downloader/base.rb:80:in
`download'
/Users/xumin/.rvm/gems/ruby-2.4.1@global/gems/cocoapods-1.10.1/lib/cocoapods/downloader.rb:108:in `download_source'
/Users/xumin/.rvm/gems/ruby-2.4.1@global/gems/cocoapods-1.10.1/lib/cocoapods/downloader.rb:75:in `download_request'
/Users/xumin/.rvm/gems/ruby-2.4.1@global/gems/cocoapods-1.10.1/lib/cocoapods/downloader/cache.rb:171:in `download'
/Users/xumin/.rvm/gems/ruby-2.4.1@global/gems/cocoapods-1.10.1/lib/cocoapods/downloader/cache.rb:154:in `block in
uncached_pod'
/Users/xumin/.rvm/gems/ruby-2.4.1@global/gems/cocoapods-1.10.1/lib/cocoapods/downloader/cache.rb:181:in `in_tmpdir'
/Users/xumin/.rvm/gems/ruby-2.4.1@global/gems/cocoapods-1.10.1/lib/cocoapods/downloader/cache.rb:153:in `uncached_pod'
/Users/xumin/.rvm/gems/ruby-2.4.1@global/gems/cocoapods-1.10.1/lib/cocoapods/downloader/cache.rb:33:in `download_pod'
/Users/xumin/.rvm/gems/ruby-2.4.1@global/gems/cocoapods-1.10.1/lib/cocoapods/downloader.rb:42:in `download'
/Users/xumin/.rvm/gems/ruby-2.4.1@global/gems/cocoapods-1.10.1/lib/cocoapods/installer/pod_source_installer.rb:118:in
`download_source'
/Users/xumin/.rvm/gems/ruby-2.4.1@global/gems/cocoapods-1.10.1/lib/cocoapods/installer/pod_source_installer.rb:69:in
`install!'
/Users/xumin/.rvm/gems/ruby-2.4.1@global/gems/cocoapods-1.10.1/lib/cocoapods/installer.rb:561:in `install_source_of_pod'
/Users/xumin/.rvm/gems/ruby-2.4.1@global/gems/cocoapods-1.10.1/lib/cocoapods/installer.rb:512:in `block (2 levels) in
install_pod_sources'
/Users/xumin/.rvm/gems/ruby-2.4.1@global/gems/cocoapods-1.10.1/lib/cocoapods/user_interface.rb:86:in `titled_section'
/Users/xumin/.rvm/gems/ruby-2.4.1@global/gems/cocoapods-1.10.1/lib/cocoapods/installer.rb:511:in `block in
install_pod_sources'
/Users/xumin/.rvm/gems/ruby-2.4.1@global/gems/cocoapods-1.10.1/lib/cocoapods/installer.rb:494:in `each'
/Users/xumin/.rvm/gems/ruby-2.4.1@global/gems/cocoapods-1.10.1/lib/cocoapods/installer.rb:494:in `install_pod_sources'
/Users/xumin/.rvm/gems/ruby-2.4.1@global/gems/cocoapods-1.10.1/lib/cocoapods/installer.rb:253:in `block in
download_dependencies'
/Users/xumin/.rvm/gems/ruby-2.4.1@global/gems/cocoapods-1.10.1/lib/cocoapods/user_interface.rb:64:in `section'
/Users/xumin/.rvm/gems/ruby-2.4.1@global/gems/cocoapods-1.10.1/lib/cocoapods/installer.rb:252:in `download_dependencies'
/Users/xumin/.rvm/gems/ruby-2.4.1@global/gems/cocoapods-1.10.1/lib/cocoapods/installer.rb:161:in `install!'
/Users/xumin/.rvm/gems/ruby-2.4.1@global/gems/cocoapods-1.10.1/lib/cocoapods/command/install.rb:52:in `run'
/Users/xumin/.rvm/gems/ruby-2.4.1@global/gems/claide-1.0.2/lib/claide/command.rb:334:in `run'
/Users/xumin/.rvm/gems/ruby-2.4.1@global/gems/cocoapods-1.10.1/lib/cocoapods/command.rb:52:in `run'
/Users/xumin/.rvm/gems/ruby-2.4.1@global/gems/cocoapods-1.10.1/bin/pod:55:in `<top (required)>'
/Users/xumin/.rvm/gems/ruby-2.4.1/bin/pod:23:in `load'
/Users/xumin/.rvm/gems/ruby-2.4.1/bin/pod:23:in `<main>'
/Users/xumin/.rvm/gems/ruby-2.4.1/bin/ruby_executable_hooks:15:in `eval'
/Users/xumin/.rvm/gems/ruby-2.4.1/bin/ruby_executable_hooks:15:in `<main>'

Error output from CocoaPods: ↳ Cloning into '/var/folders/k8/p7j2dm4x32nbl209qg_qn4mm0000gn/T/d20210330-2420-12mtj3j'... fatal: unable to access 'github.com/protocolbuf…': Operation timed out after 300028 milliseconds with 0 out of 0 bytes received

Error running pod install