Flutterfire: firebase_core Unable to build with firebase_core: 0.4.4+2

[TylerSustare]

Describe the bug

This bug is representing the comment I made here on the closed issue. https://github.com/flutter/flutter/issues/35670#issuecomment-592769263
Even trying @sensuikan1973's suggestion in the linked issue didn't work.

• flutter clean
• Clean Build Folder from Xcode
• delete Podfile.lock

But, this didn't work.

So, I deintegrate pod.

cd ios
pod deintegrate
pod install
 ```

## **To Reproduce**
Steps to reproduce the behavior:
Attempting to build and run an iOS app with `firebase_core: ^0.4.4+2` lead to 

Launching lib/main.dart on iPhone 11 Pro Max in debug mode...
Xcode build done. 5.6s
Failed to build iOS app
Error output from Xcode build:
↳
* BUILD FAILED *
Xcode's output:
↳
/Users/tsustare/development/flutter/.pub-cache/hosted/pub.dartlang.org/firebase_core-0.4.4+2/darwin/Classes/FLTFirebaseCorePlugin.m:6:9: fatal error: 'UserAgent.h' file not found
#import "UserAgent.h"
^~~~~
1 error generated.
note: Using new build system
note: Planning build
note: Constructing build description
Could not build the application for the simulator.

## **Expected behavior**
Starting the app using `firebase_core: ^0.4.4+2` the same way it does when I use `firebase_core: 0.4.3+3`

## **Additional context**
the rest of my firebase packages in  **pubspec.yaml**
``` yaml
dependencies:
  flutter:
    sdk: flutter
  provider: ^4.0.4

  firebase_core: 0.4.3+3
  firebase_auth: ^0.15.4
  cloud_firestore: ^0.13.2+1
  firebase_analytics: ^5.0.11

[NMNguyen]

Same problem :(

[ch-muhammad-adil]

I downgraded the version as mentioned above, and it caused conflict with firestore cloud storage version. Than i downgraded that too at cloud_firestore: 0.13.2 and i was able to install the app

[cadaniel]

Having the same problem.

For anyone like me who kept the ^ in the version, remove it otherwise it will keep using newer versions.

[msnowshadali]

• flutter clean
• Clean Build Folder from Xcode
• delete Podfile.lock

But, this didn't work.

So, I deintegrate pod.

cd ios
pod deintegrate
pod install

this worked for me

[kjmj]

I downgraded the version as mentioned above, and it caused conflict with firestore cloud storage version. Than i downgraded that too at cloud_firestore: 0.13.2 and i was able to install the app

I can confirm that this fixed it for me. Downgrading to cloud_firestore: 0.13.2 and firebase_core: 0.4.3+3 works.

[pojoba02]

What i did that work for me was removing ^ sign in the package version and flutter clean.
firebase_auth: 0.15.4
cloud_firestore: 0.13.4
firebase_core: 0.4.4
hopefully that works for you guys..

[nicolascavallin]

What i did that work for me was removing ^ sign in the package version and flutter clean.
firebase_auth: 0.15.4
cloud_firestore: 0.13.4
firebase_core: 0.4.4
hopefully that works for you guys..

It worked for me too!

[bbanderson]

YEAHHH You saved me a lot! Thanks

What i did that work for me was removing ^ sign in the package version and flutter clean.
firebase_auth: 0.15.4
cloud_firestore: 0.13.4
firebase_core: 0.4.4
hopefully that works for you guys..

[vpxoxo]

What i did that work for me was removing ^ sign in the package version and flutter clean.
firebase_auth: 0.15.4
cloud_firestore: 0.13.4
firebase_core: 0.4.4
hopefully that works for you guys..

this works for me too!!! thanks a lot 😍

[ingsoto83]

What i did that work for me was removing ^ sign in the package version and flutter clean.
firebase_auth: 0.15.4
cloud_firestore: 0.13.4
firebase_core: 0.4.4
hopefully that works for you guys..

It works!!! Thanks!

[loushou]

@everyone - can anyone please add a comprehensive list of package versions that would work with the reduced versions of firebase_core please? I have run through the releases list, and used the versions listed there that are prior to the latest firebase_core release... however this does not appear to do the trick. I feel like there are a few un tagged versions that are just not in the list. Thanks in advance for putting this together!

[NoahFlowa]

What i did that work for me was removing ^ sign in the package version and flutter clean.
firebase_auth: 0.15.4
cloud_firestore: 0.13.4
firebase_core: 0.4.4
hopefully that works for you guys..

This works for me! Thank you!

[StephanCassel]

I had similar problems.

firebase_core: ^0.4.4+2
firebase_auth: ^0.15.5+2
cloud_firestore: ^0.13.4
firebase_storage: ^3.1.3
firebase_analytics: ^5.0.11

Did not build. Tons of errors.

Previous settings works just fine:
firebase_core: ^0.4.0+9
firebase_auth: ^0.14.0+5
cloud_firestore: ^0.12.9+4
firebase_storage: ^3.0.6
firebase_analytics: ^5.0.2

I then removed:
implementation 'com.google.firebase:firebase-core:16.0.4' from my build.gradle
It has been in my build.gradle for long time without any harm.
Why I have put it there I do not know.

And I took the lates firebase plugins again, with ^ sign:

firebase_core: ^0.4.4+2
firebase_auth: ^0.15.5+2
cloud_firestore: ^0.13.4
firebase_storage: ^3.1.3
firebase_analytics: ^5.0.11

And now it builds perfect. Both Android and iOS for debug and release.

Summary:
I love Flutter. It has really changed development processes dramatically.
I hate Flutter when I need to update 30+ dependencies in my YAML.
I love 😍Flutter😍 even more again when everything works some hours later and I can continue coding.

[andesappal]

To reproduce the build failure, just create a new Flutter project, and add Cloud Firestore as a dependency, then try running the project.

[andesappal]

(also add the Google services info plist)

[awhitford]

It appears that PR #2099 should resolve this. I'm eagerly waiting for that to be released as this is impacting many modules.

[saultrejo]

What i did that work for me was removing ^ sign in the package version and flutter clean.
firebase_auth: 0.15.4
cloud_firestore: 0.13.4
firebase_core: 0.4.4
hopefully that works for you guys..

Downgrading firebase_core to 0.4.4 worked for me. Thanks a lot.

[iapicca]

https://github.com/FirebaseExtended/flutterfire/issues/2084

[bhenav]

Same problem :(
firebase_core: 0.4.4+2 or firebase_core: 0.4.4
firebase_analytics: 5.0.11
firebase_messaging: 6.0.12

[jmagman]

Fixed by https://github.com/FirebaseExtended/flutterfire/pull/2169.

[iamatulkumar]

dependencies:
firebase_core: 0.4.4
firebase_remote_config: ^0.3.0+3
firebase_auth: 0.15.0 ---> remove ^

dependency_overrides:
firebase_core: 0.4.4

Works for me. thanks a lot (y)

[pointmdca]

should now be fixed with firebase_core 0.4.4+3: Fix for missing UserAgent.h compilation failures.
Some of the other packages got this update as well.

[dhust]

should now be fixed with firebase_core 0.4.4+3: Fix for missing UserAgent.h compilation failures.
Some of the other packages got this update as well.

Did not work with firebase_core 0.4.4+3. It never copied over the firebase_core-0.4.4 folder in the Dart Packages folder.

[edufolly]

should now be fixed with firebase_core 0.4.4+3: Fix for missing UserAgent.h compilation failures.
Some of the other packages got this update as well.

Did not work with firebase_core 0.4.4+3. It never copied over the firebase_core-0.4.4 folder in the Dart Packages folder.

Verify if the pubspec.yaml file is correct. Try to execute flutter pub cache repair.

In my latest iOS build, I needed to clear Xcode cache.
rm -rf ~/Library/Developer/Xcode/DerivedData

In iOS folder, delete Podfile.lock file and Pods folder, than execute pod upgrade.

[dhust]

I e

should now be fixed with firebase_core 0.4.4+3: Fix for missing UserAgent.h compilation failures.
Some of the other packages got this update as well.

Did not work with firebase_core 0.4.4+3. It never copied over the firebase_core-0.4.4 folder in the Dart Packages folder.

Verify if the pubspec.yaml file is correct. Try to execute flutter pub cache repair.

In my latest iOS build, I needed to clear Xcode cache.
rm -rf ~/Library/Developer/Xcode/DerivedData

In iOS folder, delete Podfile.lock file and Pods folder, than execute pod upgrade.

I ended up going back to 0.4.4 and it creates the folder.