dependency issues why I try to run/debug my app - flutter

Question

I'm new to making an app with flutter/dart and I'm running into some issues with the dependecies in the pubspec.yaml. I'm trying to make an app from a template to learn about how to work with repositories from github. After I brought in the code and repaired all the errors I tried to run/debug it and keep getting this from the output terminal:
Because google_sign_in >=5.4.0 depends on google_sign_in_platform_interface ^2.2.0 which depends on quiver ^3.0.0, google_sign_in >=5.4.0 requires quiver ^3.0.0.
And because cloud_firestore >=0.14.0-dev.1 <0.17.0-1.0.nullsafety.0 depends on quiver ^2.0.0, google_sign_in >=5.4.0 is incompatible with cloud_firestore >=0.14.0-dev.1 <0.17.0-1.0.nullsafety.0.
Because cloud_firestore >=0.13.3 <0.14.0-dev.1 depends on firebase_core ^0.4.4 and cloud_firestore >=0.11.0 <0.13.3 depends on firebase_core ^0.4.0, cloud_firestore >=0.11.0 <0.14.0-dev.1 requires firebase_core ^0.4.0.
Thus, if google_sign_in >=5.4.0 and cloud_firestore >=0.11.0 <0.17.0-1.0.nullsafety.0 then firebase_core ^0.4.0.
And because txapita depends on cloud_firestore >=0.11.0 <0.14.0+1, google_sign_in >=5.4.0 requires firebase_core ^0.4.0.
So, because txapita depends on both firebase_core ^2.4.1 and google_sign_in ^5.4.2, version solving failed.
pub get failed (1; So, because txapita depends on both firebase_core ^2.4.1 and google_sign_in ^5.4.2, version solving failed.)
exit code 1
Also, how do I get rid of txapita from the whole project if I can. It seems a lot of the code in the repository needs that package but I can't find the source package.
I've tried changing the versions to the versions in the error message
Here is my pubspec with things I've tried:
If I change the name to the name of the app it adds more errors to the output terminal when I save, is that how I get rid of the packages from the code?
name: txapita
description: A new Flutter application.
version: 1.0.0+1
environment:
sdk: ">=2.2.0 <3.0.0"
dependencies:
flutter:
sdk: flutter
## I've tried doing this with the version numbers
cloud_firestore: ">=0.11.0 <0.14.0+1"
cupertino_icons: null
firebase_auth: null
firebase_core: ^2.4.1
firebase_messaging: ^14.2.1
flutter_google_places: null
flutter_spinkit: ^4.1.2
geocoder: null
geoflutterfire: ^2.0.3+6
geolocator: null
google_maps_flutter: ^2.2.3
google_maps_webservice: null
http: null
location: null
modal_bottom_sheet: ^0.2.2
percent_indicator: ^2.1.7+2
provider: null
rxdart: any
shared_preferences: ^2.0.15
uuid: null
url_launcher: ^5.0.3
get_it: ^1.0.3+2
get: ^4.6.5
share_plus: ^6.3.0
google_sign_in: ^5.4.2
path_provider: ^2.0.11
path_provider_windows: ^2.1.3
shared_preferences_windows: ^2.1.2
path_provider_platform_interface: ^2.0.0
platform: ^3.1.0
dev_dependencies:
flutter_test:
sdk: flutter
flutter_lints: ^2.0.1
flutter:
uses-material-design: true

Answer 1

Rather than using null or any find the package version by searching the package.
Link to PUB: https://pub.dev/
E.g. : cloud_firestore: ^4.3.1
Try running flutter pub upgrade --major-versions