Running pod install…
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 `.symlinks/flutter/ios`
-> Fetching podspec for `image_picker` from `.symlinks/plugins/image_picker/ios`
-> Fetching podspec for `url_launcher` from `.symlinks/plugins/url_launcher/ios`

Resolving dependencies of `Podfile`

Setting up CocoaPods master repo
  $ /usr/bin/git remote set-url origin https://github.com/CocoaPods/Specs.git
  [!] Failed: /usr/bin/git remote set-url origin https://github.com/CocoaPods/Specs.git
  $ /usr/bin/git checkout master
  [!] Failed: /usr/bin/git checkout master
[!] Unable to add a source with url `https://github.com/CocoaPods/Specs.git` named `master-1`.
(The `master` repo is not a git repo.)
You can try adding it manually in `/Users/suwenqian/.cocoapods/repos` or via `pod repo add`.

/usr/local/Cellar/cocoapods/1.7.2/libexec/gems/cocoapods-1.7.2/lib/cocoapods/sources_manager.rb:40:in `rescue in find_or_create_source_with_url'
/usr/local/Cellar/cocoapods/1.7.2/libexec/gems/cocoapods-1.7.2/lib/cocoapods/sources_manager.rb:43:in `find_or_create_source_with_url'
/usr/local/Cellar/cocoapods/1.7.2/libexec/gems/cocoapods-1.7.2/lib/cocoapods/installer/analyzer.rb:173:in `block in sources'
/usr/local/Cellar/cocoapods/1.7.2/libexec/gems/cocoapods-1.7.2/lib/cocoapods/installer/analyzer.rb:172:in `map'
/usr/local/Cellar/cocoapods/1.7.2/libexec/gems/cocoapods-1.7.2/lib/cocoapods/installer/analyzer.rb:172:in `sources'
/usr/local/Cellar/cocoapods/1.7.2/libexec/gems/cocoapods-1.7.2/lib/cocoapods/installer/analyzer.rb:938:in `block in resolve_dependencies'
/usr/local/Cellar/cocoapods/1.7.2/libexec/gems/cocoapods-1.7.2/lib/cocoapods/user_interface.rb:64:in `section'
/usr/local/Cellar/cocoapods/1.7.2/libexec/gems/cocoapods-1.7.2/lib/cocoapods/installer/analyzer.rb:937:in `resolve_dependencies'
/usr/local/Cellar/cocoapods/1.7.2/libexec/gems/cocoapods-1.7.2/lib/cocoapods/installer/analyzer.rb:118:in `analyze'
/usr/local/Cellar/cocoapods/1.7.2/libexec/gems/cocoapods-1.7.2/lib/cocoapods/installer.rb:398:in `analyze'
/usr/local/Cellar/cocoapods/1.7.2/libexec/gems/cocoapods-1.7.2/lib/cocoapods/installer.rb:221:in `block in resolve_dependencies'
/usr/local/Cellar/cocoapods/1.7.2/libexec/gems/cocoapods-1.7.2/lib/cocoapods/user_interface.rb:64:in `section'
/usr/local/Cellar/cocoapods/1.7.2/libexec/gems/cocoapods-1.7.2/lib/cocoapods/installer.rb:220:in `resolve_dependencies'
/usr/local/Cellar/cocoapods/1.7.2/libexec/gems/cocoapods-1.7.2/lib/cocoapods/installer.rb:156:in `install!'
/usr/local/Cellar/cocoapods/1.7.2/libexec/gems/cocoapods-1.7.2/lib/cocoapods/command/install.rb:51:in `run'
/usr/local/Cellar/cocoapods/1.7.2/libexec/gems/claide-1.0.2/lib/claide/command.rb:334:in `run'
/usr/local/Cellar/cocoapods/1.7.2/libexec/gems/cocoapods-1.7.2/lib/cocoapods/command.rb:52:in `run'
/usr/local/Cellar/cocoapods/1.7.2/libexec/gems/cocoapods-1.7.2/bin/pod:55:in `<top (required)>'
/usr/local/Cellar/cocoapods/1.7.2/libexec/bin/pod:22:in `load'
/usr/local/Cellar/cocoapods/1.7.2/libexec/bin/pod:22:in `<main>'

Error output from CocoaPods:
↳
fatal: not a git repository (or any of the parent directories): .git
fatal: not a git repository (or any of the parent directories): .git

[!] Automatically assigning platform `ios` with version `8.0` on target `Runner` because no platform was specified. Please specify a platform for this target in your Podfile. See `https://guides.cocoapods.org/syntax/podfile.html#platform`.

Error running pod install
Error launching application on iPhone Xʀ.

运行flutter-base-demo的时候报的错误，求老师指点一下