Hi @huyabin
Please all the follow steps in iOS setup

You can see one of the steps is to Cocoapods from your flutter doctor -v, execute sudo gem install cocoapods in your terminal

[!] Xcode - develop for iOS and macOS (Xcode 11.3)
! Unknown CocoaPods version installed.
Flutter is unable to determine the installed CocoaPods's version.
Ensure that the output of 'pod --version' contains only digits and . to
be recognized by Flutter.
To upgrade:
sudo gem install cocoapods

Thank you

After sudo gem install cocoapods ，pod version is 1.9.3. but prompt not found cocoapods

I guess it's parsing Resolving dependencies... ? I don't have that output.

have solve method, I have same problem

Has anyone been able to get around this issue? I can't build my app because of this. I'm also getting Resolving dependencies... in the output of pod --version

I had this exact issue, but now it's gone. I am not able to pinpoint exact solution, but here's what I did:

• removed RVM - it was using Ruby 2.7
• installed Ruby 3.0 using Homebrew

Same issue

➜ flutter doctor -v
[✓] Flutter (Channel stable, 2.2.3, on macOS 11.4 20F71 darwin-x64, locale en-BR)
    • Flutter version 2.2.3 at /Users/danieldocki/.asdf/installs/flutter/2.2.3-stable
    • Framework revision f4abaa0735 (3 weeks ago), 2021-07-01 12:46:11 -0700
    • Engine revision 241c87ad80
    • Dart version 2.13.4

[✓] Android toolchain - develop for Android devices (Android SDK version 30.0.3)
    • Android SDK at /Users/danieldocki/Library/Android/sdk
    • Platform android-30, build-tools 30.0.3
    • Java binary at: /Applications/Android Studio.app/Contents/jre/jdk/Contents/Home/bin/java
    • Java version OpenJDK Runtime Environment (build 11.0.8+10-b944.6916264)
    • All Android licenses accepted.

[!] Xcode - develop for iOS and macOS
    • Xcode at /Applications/Xcode.app/Contents/Developer
    • Xcode 12.5.1, Build version 12E507
    ✗ CocoaPods not installed.
        CocoaPods is used to retrieve the iOS and macOS platform side's plugin code that responds to your plugin usage on the Dart side.
        Without CocoaPods, plugins will not work on iOS or macOS.
        For more info, see https://flutter.dev/platform-plugins
      To install see https://guides.cocoapods.org/using/getting-started.html#installation for instructions.

[✓] Chrome - develop for the web
    • Chrome at /Applications/Google Chrome.app/Contents/MacOS/Google Chrome

[✓] Android Studio (version 4.2)
    • Android Studio at /Applications/Android Studio.app/Contents
    • Flutter plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/9212-flutter
    • Dart plugin can be installed from:
      🔨 https://plugins.jetbrains.com/plugin/6351-dart
    • Java version OpenJDK Runtime Environment (build 11.0.8+10-b944.6916264)

[✓] VS Code (version 1.58.2)
    • VS Code at /Applications/Visual Studio Code.app/Contents
    • Flutter extension can be installed from:
      🔨 https://marketplace.visualstudio.com/items?itemName=Dart-Code.flutter

[✓] Connected device (1 available)
    • Chrome (web) • chrome • web-javascript • Google Chrome 91.0.4472.114

! Doctor found issues in 1 category.


➜ pod --version
1.10.1


➜ which pod
/Users/danieldocki/.gem/bin/pod

➜ which pod
/Users/danieldocki/.gem/bin/pod

Weird, that's all the tool is doing. You can see it in a `flutter doctor -vv

[   +8 ms] executing: which pod

Though you are actually seeing ✗ CocoaPods not installed. whereas the originator reported a broken install, which means it's installed but the version can't be parsed.

➜ which pod
/Users/danieldocki/.gem/bin/pod

Weird, that's all the tool is doing. You can see it in a `flutter doctor -vv

[   +8 ms] executing: which pod

flutter/packages/flutter_tools/lib/src/macos/cocoapods.dart

Lines 114 to 115 in e028d0f

	Future<bool> get isInstalled =>
	_processUtils.exitsHappy(<String>['which', 'pod']);

Though you are actually seeing ✗ CocoaPods not installed. whereas the originator reported a broken install, which means it's installed but the version can't be parsed.

I found out what was going on in my environment, I just don't understand why, I use asdf as a package manager for ruby, nodejs, flutter, etc.

I ran the flutter doctor -v command in a blank folder and it gave the error I reported, and then I ran the same command in a project folder and it worked.

I noticed that this project had nodejs in .tools-versions and was at version 15.13.0, but in global it was 14.17.3, I changed the global nodejs version to 15.13.0 and flutter doctor -v everything was ok.

Now what is nodejs' relationship with flutter I don't know.

i have the same issue and detect it when you use flutter doctor from android studio the issue is appear
and if you write flutter doctor --verbose from terminal not appear

so use terminal for now instead of android studio button till issue solved

To resolve this issue, please add the following line to your Gemfile:

gem "activesupport", "= 7.0.8"

We aren't investing further in CocoaPods tooling. You can follow along with our Swift Package Manager adoption here #126005.