# Chapter 19 iOS simulator issues

**URL:** <https://forums.kodeco.com/t/chapter-19-ios-simulator-issues/160351>\
**Category:** Flutter Apprentice\
**Created:** [December 15, 2021, 10:45pm UTC](https://forums.kodeco.com/t/chapter-19-ios-simulator-issues/160351 "2021-12-15T22:45:33Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![yek](https://assets.chunter.kodeco.com/user_avatar/forums.kodeco.com/yek/32/101506_2.png) [@yek](https://forums.kodeco.com/u/yek)\
**Post date:** [December 15, 2021, 10:45pm UTC](https://forums.kodeco.com/t/chapter-19-ios-simulator-issues/160351/1 "2021-12-15T22:45:33Z")

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Hello,  
I’m new in Flutter. I have a conflict about iOS simulation (not real device) when i debug the chapter 19 project. I have a cocoapods problem (pod system) which facing with firestore exactly. In this chapter especially when i download library to the pubspec.yaml (firebase libra); i faced Xcode “pod install error” while i debug the chapter 19 project. I try to pod install in Xcode side but problem is not solved. So i couldn’t find any solution that regularly work yet. Maybe I missed some parts. Thanks in advance.

By the way the book is helpful to understand what especially Flutter is. I will often turn back to the book. Thanks.

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**Author:** ![kevindmoore](https://assets.chunter.kodeco.com/user_avatar/forums.kodeco.com/kevindmoore/32/109046_2.png) [@kevindmoore](https://forums.kodeco.com/u/kevindmoore)\
**Post date:** [December 15, 2021, 11:53pm UTC](https://forums.kodeco.com/t/chapter-19-ios-simulator-issues/160351/2 "2021-12-15T23:53:05Z")

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I’ve found that in ios if things get really messy, you can run a flutter clean. Then build the ios in Android Studio or Visual Code (not Xcode)

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**Author:** ![yek](https://assets.chunter.kodeco.com/user_avatar/forums.kodeco.com/yek/32/101506_2.png) [@yek](https://forums.kodeco.com/u/yek)\
**Post date:** [December 16, 2021, 12:54pm UTC](https://forums.kodeco.com/t/chapter-19-ios-simulator-issues/160351/3 "2021-12-16T12:54:18Z")

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Thank you for answer but i did it before and faced with this screen in “vscode”. This process working an hour.

![screenshot](https://files.chunter.kodeco.com/original/3X/e/e/eed95bc8ae9c6868a70bcc3f3358c70b17de8663.png)

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**Author:** ![funkyboy](https://assets.chunter.kodeco.com/user_avatar/forums.kodeco.com/funkyboy/32/109099_2.png) [@funkyboy](https://forums.kodeco.com/u/funkyboy)\
**Post date:** [December 16, 2021, 1:27pm UTC](https://forums.kodeco.com/t/chapter-19-ios-simulator-issues/160351/4 "2021-12-16T13:27:52Z")

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We had this too when writing the book. Let it run and it will eventually finish.

If you are curious this is the issue [[Update] Cloud Firestore Xcode Build Times · Issue #2751 · firebase/flutterfire · GitHub](https://github.com/FirebaseExtended/flutterfire/issues/2751)

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<div class="post-metadata">

**Author:** ![yek](https://assets.chunter.kodeco.com/user_avatar/forums.kodeco.com/yek/32/101506_2.png) [@yek](https://forums.kodeco.com/u/yek)\
**Post date:** [December 16, 2021, 1:39pm UTC](https://forums.kodeco.com/t/chapter-19-ios-simulator-issues/160351/5 "2021-12-16T13:39:19Z")

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Thank you for your help, i hope this firebase library building situation will fixed soon 🙂