Flutter iOS build failed an error of pod files: Podfile is out of date

This happens to most of times when i update the flutter SDK, But don't skip updating to make it better and easier because it is very easy to solve

It is necessary to fix - Removing contents of Pods folder will solve the issue, Here is the process of how to do this

1. To completely clean(Removing all points to links) and create upgraded to the new(uninstall and installing again too), Write following command

   flutter cleanrm -Rf ios/Podsrm -Rf ios/.symlinksrm -Rf ios/Flutter/Flutter.frameworkrm -Rf ios/Flutter/Flutter.podspec

2. Then for reproduce Podfile follow this command

   rm ios/Podfile

3. Finally your project is ready to good to go

   flutter run

This mostly happens when you upgrade your flutter application, to solve this issue follow bellow steps

1. Go to Your_Project_Directory/ios/ and remove Podfile or you can do it by running the following command in the root project directory

   rm ios/Podfile

2. Run your project again, this will create a new and updated Podfile for you

   flutter run

Use pod install command in your ios directory to install new pods in your project. Even if you already have a Podfile and ran pod install before. This should work for you. I ran into the same problem some time ago and this is how it was solved.