How to solve "error running pod install" in flutter on mac?

Question

I have an error when I tried to launch my project on my iPhone, the basic Flutter example is working on my iPhone but when I use my project I have this error.

Answer 1

你可以用

sudo arch -x86_64 gem install ffi

Answer 2

In Flutter project, I Also faced with this issue. Fixed by updating flutter and cocoa pods to the latest version.

Solution:-

flutter clean
rm -Rf ios/Pods
rm -Rf ios/.symlinks
rm -Rf ios/Flutter/Flutter.framework
rm -Rf ios/Flutter/Flutter.podspec
flutter pub get
cd ios
pod install 
arch -x86_64 pod install  //(On an M1 mac use => arch -x86_64 pod install)
cd ..
flutter build ios
flutter run

Answer 3

This happens when we change any plugins versions or flutter pub package.

I was getting a similar error, so I used many different things but still nothing happened but finally I got an exact solution For the solution follow the below steps

1. Delete the podfile.lock file from the ios folder.

2. Open the terminal, go to the ios folder directory and run pod install . It could take some time to install.

   If pod install gives any error then try this

   pod install --repo-update

3. After everything is done run your project again

   flutter run

Ref:- Running pod install

Answer 4

I got this error when I was using Firebase in flutter, the solution for me was to set the Podfile deployment target to a iOS version higher than 9.

Example: Changed this

#platform :ios, '9.0'

to

 platform :ios, '13.0'

Answer 5

I faced the same issue and none of the above work. Finally I resolved it by:

1. Check ios/.symlinks/plugins contains extra plugin which you are not using.
2. Delete podfile.lock in ios folder, if it exists.
3. Delete podfile from ios folder.
4. Delete pods folder in ios directory.
5. Run flutter clean in the terminal.
6. Run flutter pub get in the terminal.
7. Run flutter run in the terminal.

Answer 6

2022 update

After struggling for hours the following helped me:

sudo gem uninstall cocoapods
brew install cocoapods

Make sure you have HomeBrew installed before you do the above. Steps to install HomeBrew: Install HomeBrew

Answer 7

1. Change directory to your project; eg /dart/apps/abc
2. Type, flutter clean && pod update

Answer 8

So did you solve this problem?

I met the same situation. And this is the solution I found. Link

Basically:

• Locate Terminal.app in Finder. (Applications->Terminal.app)
• Right-click and choose Get Info
• Check the “Open using Rosetta”
• Quit all instances of Terminal app and run it again
• Run sudo gem install ffi

After you finish the above several steps, restart your IDE and re-run the application. Please give a reply if this method works.

Answer 9

1. Simply delete the Podfile from your project
2. Run this command in terminal (I did in Android studio terminal it self)

sudo gem install cocoapods

3. And then run this

pod init

It works for me..

Answer 10

For Mac M1, try the following commands. Worked for me fine

sudo arch -x86_64 gem install ffi
arch -x86_64 pod install

Answer 11

I'm using VS Code and flutter 2.10.1 running intel mac

I've faced this problem several times, usually when switching between projects or when working with multiple versions of project. But the solution is pretty simple.

1. Inside your project parent directory go to, ios -> Podfile. Here the top line will be something like this,

# Uncomment this line to define a global platform for your project
# platform :ios, '9.0'

check whatever version you are using on simulator and replace '9.0' with that and uncomment.

# Uncomment this line to define a global platform for your project
platform :ios, '15.4'

2. Now if we try to run the flutter project, the debugger will say that the cocoapods are outdated. So just update them using command

pod repo update

And that should solve the problem.

Answer 12

I'd the same problem, in my case when I ran pod install --verbose I realize that there was an specific error during pod install

undefined method `each_child' for #Dir:0x00007ff10befa7f0 Did you mean? each_slice

Looking for this specific error I found this answer and I realize that I was using ruby 2.5 and one file generated by Flutter for iOS devices was trying to use a method that was introduced on version 2.6.

After follow the steps on that answer I could run my Flutter app on iOS simulator.

The method dir.each_child was introduced in Ruby 2.6 , but you are using Ruby 2.3.0.

You should update Ruby to 2.6.0 or later 2.x version.

After Ruby updating you may also need to restart your IDE and re-install cocoapods .

Answer 13

1. Delete the podfile.lock (located in app root > ios folder)
2. Run in Terminal pod install --repo-update
3. flutter run

Answer 14

If you have a Mac with Apple Silicon use this method to fix the problem:

https://stackoverflow.com/a/65334677/2235274

Answer 15

Check in ios/.symlinks/plugins for unused plugins. and if there are, remove from pubspec.yml. This solved my problem.

Answer 16

如果您有 MacBook Pro M1，那么此命令会有所帮助（对我有用）

sudo arch -x86_64 gem install ffi

Answer 17

As per the install instructions make sure M1 users run. Solved the issue for me. I missed it on install!

$ sudo softwareupdate --install-rosetta --agree-to-license

Answer 18

run this code on the terminal

sudo arch -x86_64 gem install ffi

Next, go to the ios folder in your project, and open Podfile.

Then change #platform :ios, '9.0' to platform :ios, '10.0'

Answer 19

I solve the same issue so:

• Delete podfile.lock in iOS-folder app
• Run pod repo update in the terminal
• Re-compile my code

Answer 20

I had similar problems running flutter web on mac. Make sure you uncomment and update the podfile from macos folder not ios I'm talking about these lines:

# Uncomment this line to define a global platform for your project
platform :osx, '15.4'

Answer 21

If you want an automated script to change the deployment target, use

sed -i '' 's/9.0/10.0/' ./.ios/Podfile

where 9.0 is the generated iOS version and 10.0 the desired

on your pipeline, shell script or whatever

Answer 22

The link https://cdn.cocoapods.org does not work correctly, I had to change the source in ios/Podfile as described in the code below:

1. Change source in ios/Podfile

# platform :ios, '9.0'

source 'https://github.com/CocoaPods/Specs.git'

2. Clean your project

flutter clean

3. Install referenced packages

flutter pub get

4. Run the app

---

The error can also come from a package which requires a version higher than '9.0' in this case it is necessary to uncomment the line # platform:ios, '9.0' and to pass for example to version '14.0' according to the version requested by the package.

Answer 23

There are multiple reasons this could occur so a one-size-fits-all solution won't exist.

Instead, in terminal, run:

$ cd ios

$ pod install

This will give you more in depth information on the error and you can search from there. In my case one of my dependencies required a higher minimum ios version so I had to open the.xcworkspace file and adjust the minimum deployment version in xcode>targets>general>minimum_deployments

Answer 24

If anyone is struggling on M1 machines with a particular pod, the following helped me:

flutter precache --ios  
arch -x86_64 pod update Firebase/Firestore //or name of pod from the error

Answer 25

For me none of the above helped, the following worked on my case:

1. Deleted the macos folder from main project.
2. Created a dummy flutter project .
3. Copied the newly created macos folder.
4. Pasted it to my main project .

Additionally I use firebase plugins, so I made some changes in pod file,.. It started running.

Answer 26

Open Your Terminal paste this line of code open ~/.zshrc press Enter

if you don't have the zshrc file you will have to create it, to create it you need to open terminal paste this code touch ~/.zshrc add you flutter path and move to Second instruction

2 The Text File will open add then you add this export LANG=en_US.UTF-8