I have downloaded flutter_windows_2.0.5-stable.zip and installed Flutter 2.0.5.
When I run a v1.24.0 project, I get the following output:
Running "flutter pub get" in get_json ...
The current Dart SDK version is 2.12.0-29.10.beta.
Because flutter_easyloading 3.0.0 requires SDK version >=2.12.0 <3.0.0 and no versions of flutter_easyloading match >3.0.0 <4.0.0, flutter_easyloading ^3.0.0 is forbidden.
So, because get_json depends on flutter_easyloading ^3.0.0, version solving failed.
pub get failed (1; So, because get_json depends on flutter_easyloading ^3.0.0, version solving failed.)
Contents of pubspec.yaml:
dependencies:
flutter:
sdk: flutter
http: ^0.12.2
json_annotation: ^2.0.0 #^4.0.1
rflutter_alert: ^1.1.0 #^2.0.2
pdf_flutter: ^1.1.4
syncfusion_flutter_pdfviewer: ^18.4.49-beta
webview_flutter: ^1.0.7 #^2.0.4
flutter_easyloading: ^3.0.0
cupertino_icons: ^1.0.1
dev_dependencies:
flutter_test:
sdk: flutter
build_runner: ^1.0.0
json_serializable: ^2.0.0 #^4.1.1
Looking around the Internet I found
Update to/install latest Flutter packages (pubspec.yaml)
At the end of this it is stated that in Flutter 2 it will help to run
1 flutter pub outdated and
2 flutter pub upgrade --major-versions
Running 1 "flutter pub outdated" gives a looot of output and ends with:
Changed 75 dependencies!
25 packages have newer versions incompatible with dependency constraints.
Try `flutter pub outdated` for more information.
No changes to pubspec.yaml!
Running 2 "flutter pub upgrade --major-versions" also gives a lot of output and ends with:
...
No dependencies changed.
25 packages have newer versions incompatible with dependency constraints.
Try `flutter pub outdated` for more information.
Changed 4 constraints in pubspec.yaml:
json_annotation: ^2.0.0 -> ^4.0.1
rflutter_alert: ^1.1.0 -> ^2.0.2
webview_flutter: ^1.0.7 -> ^2.0.4
json_serializable: ^2.0.0 -> ^4.1.1
pubspec.yaml was changed to:
dependencies:
flutter:
sdk: flutter
http: ^0.12.2
json_annotation: ^4.0.1 #^4.0.1
rflutter_alert: ^2.0.2 #^2.0.2
pdf_flutter: ^1.1.4
syncfusion_flutter_pdfviewer: ^18.4.49-beta
webview_flutter: ^2.0.4 #^2.0.4
flutter_easyloading: ^3.0.0
cupertino_icons: ^1.0.1
dev_dependencies:
flutter_test:
sdk: flutter
build_runner: ^1.0.0
json_serializable: ^4.1.1 #^4.1.1
Now I try run my (old) project again which results in the following output:
Running "flutter pub get" in get_json...
The current Dart SDK version is 2.12.0-29.10.beta.
Because no versions of json_serializable match >4.1.1 <5.0.0 and json_serializable 4.1.1 requires SDK version >=2.12.0 <3.0.0, json_serializable ^4.1.1 is forbidden.
So, because get_json depends on json_serializable ^4.1.1, version solving failed.
pub get failed (1; So, because get_json depends on json_serializable ^4.1.1, version solving failed.)
I have tried many variations of what is described above, but I am stuck.
Can anyone help or guide me in the right direction? Thank you.
==============================
Thank you to Ujjwal Raijada. I got Flutter 2 because of web support and did not think of null safety. However, I have now followed the migration guide to the detail and now have the following pubspec.yaml:
environment:
sdk: '>=2.12.0 <3.0.0'
dependencies:
flutter:
sdk: flutter
http: ^0.13.1
json_annotation: ^4.0.1
rflutter_alert: ^2.0.2
#pdf_flutter: ^1.1.4 # Package pdf_flutter is not null safe and therefore cannot be used ...
syncfusion_flutter_pdfviewer: ^19.1.57-beta
webview_flutter: ^2.0.4
flutter_easyloading: ^3.0.0
cupertino_icons: ^1.0.2
dev_dependencies:
flutter_test:
sdk: flutter
build_runner: ^2.0.1
json_serializable: ^4.1.1
I have also changed my code as suggested by the migration guide. so now I run "flutter packages pub run build_runner build" which results in:
The pubspec.yaml file has changed since the pubspec.lock file was generated, please run "pub get" again.
pub finished with exit code 65
Pressing "pub get" in pubspec.yaml gives the following result:
The current Dart SDK version is 2.12.0-29.10.beta.
Because get_json requires SDK version >=2.12.0 <3.0.0, version solving failed.
pub get failed (1; Because get_json requires SDK version >=2.12.0 <3.0.0, version solving failed.)
Process finished with exit code 1
What should I do now? Any help out there? Thank you.
Related
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
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
hello I tried running flutter pub get and I was faced with this error:
flutter pub get
Waiting for another flutter command to release the startup lock...
Running "flutter pub get" in Deutsche-Flutter...
Because every version of flutter_test from sdk depends on test_api 0.3.0 and mockito 4.1.4 depends on test_api ^0.2.19-nullsafety, flutter_test from sdk is incompatible with mockito 4.1.4.
And because no versions of mockito match >4.1.4 <5.0.0, flutter_test from sdk is incompatible with mockito ^4.1.4.
So, because deutsche depends on both mockito ^4.1.4 and flutter_test any from sdk, version solving failed.
pub get failed (1; So, because deutsche depends on both mockito ^4.1.4 and flutter_test any from sdk, version solving failed.)
exit code 1
I already ran flutter upgrade and tried to run flutter pub get here are my dependencies:
environment:
sdk: ">=2.7.0 <3.0.0"
dependencies:
flutter:
sdk: flutter
# The following adds the Cupertino Icons font to your application.
# Use with the CupertinoIcons class for iOS style icons.
cupertino_icons: ^1.0.0
flutter_svg: ^0.19.1
flutter_bloc: ^6.1.2
get: ^3.23.1
rxdart: ^0.19.0
http: ^0.12.2
google_fonts: ^0.3.9
circular_countdown_timer: ^0.1.0
pin_code_fields: ^2.4.0
google_nav_bar: ^3.2.0
line_icons: ^0.2.0
shared_preferences: ^0.5.12+4
flutter_launcher_icons: ^0.7.2+1
rive: ^0.6.8
timer_count_down: ^1.0.4+1
logger: ^0.9.4
dartz: ^0.9.0-dev.6
freezed_annotation: ^0.12.0
bloc_test: ^7.1.0
mockito: ^4.1.4
jwt_decode: ^0.3.1
carousel_slider: ^3.0.0
dev_dependencies:
build_runner:
freezed: ^0.12.7
flutter_test:
sdk: flutter
Update all of your plugins and that will work. And do make sure that all of them are null-safety enabled.
try replacing mokito version as any as follows.
mockito: any
then check the pubspeck.lock file and search mokito and take that version number from there and replace it in pubspec.yaml file
update the mockito package to => mockito: ^5.2.0
I am trying to add a calendar widget to my flutter app but I am getting errors when I run "pub get".
pubspec.yaml content:
environment:
sdk: ">=2.8.0 <3.0.0"
dependencies:
flutter:
sdk: flutter
cupertino_icons: ^0.1.2
animated_text_kit: ^1.3.0
firebase_core: ^0.5.2+1
firebase_auth: ^0.18.4+1
firebase_auth_web: ^0.3.2+3
cloud_firestore: ^0.14.3+1
modal_progress_hud: ^0.1.3
uuid: ^2.2.2
provider: ^4.3.2+3
flutter_launcher_icons: ^0.8.1
flutter_keyboard_visibility: ^4.0.2
firebase_messaging: ^7.0.3
table_calendar: ^3.0.0
intl: ^0.17.0
Output from pub get:
Running "flutter pub get" in tonnah...
Because tonnah depends on firebase_auth_web ^0.3.2+3 which depends on intl ^0.16.1, intl ^0.16.1 is required.
So, because tonnah depends on intl ^0.17.0, version solving failed.
pub get failed (1; So, because tonnah depends on intl ^0.17.0, version solving failed.)
Process finished with exit code 1
When I change the intl: ^0.17.0 to intl:^0.16.1 I get the following output from pub get:
Running "flutter pub get" in tonnah...
Because tonnah depends on table_calendar ^3.0.0 which depends on intl ^0.17.0, intl ^0.17.0 is required.
So, because tonnah depends on intl ^0.16.1, version solving failed.
pub get failed (1; So, because tonnah depends on intl ^0.16.1, version solving failed.)
Process finished with exit code 1
I seem to be running in circles. How do I fix this?
Add this to your pubspec.yaml:
dependency_overrides:
intl: ^0.16.1
The current Dart SDK version is 2.10.5.
Because path_provider 2.0.1 requires SDK version >=2.12.0-259.9.beta <3.0.0 and no versions of path_provider match >2.0.1 <3.0.0, path_provider ^2.0.1 is forbidden.
So, because harmonoid depends on path_provider ^2.0.1, version solving failed.
pub get failed (1; So, because harmonoid depends on path_provider ^2.0.1, version solving failed.)
How do i solved this error? this is my pubspec.yaml
version: 1.0.0+1
environment:
sdk: ">=2.8.0 <3.0.0"
dependencies:
flutter:
sdk: flutter
animations: ^1.1.2
provider: ^4.3.3
assets_audio_player:
git: https://github.com/alexmercerind/Flutter-AssetsAudioPlayer
media_metadata_retriever: ^0.0.2+1
http: ^0.12.2
path: ^1.7.0
path_provider: ^2.0.1
flutter_local_notifications: ^3.0.3
url_launcher: ^5.5.0
permission_handler: ^5.0.1+1
share: ^0.6.5+4
palette_generator: ^0.2.3
implicitly_animated_reorderable_list: ^0.3.2
dev_dependencies:
flutter_test:
sdk: flutter
error
My Dart SDK version is 2.12.0, and the Flutter version is 2.0.1. I created a new project and copied all your dependencies. The project worked without any problems.
For saving your time, I recommend upgrading to the stable channel and Flutter 2 using these commands or this link.
flutter channel stable
flutter upgrade
If you don't want to migrate your Flutter and Dard SDK versions yet,
I would recommend you to try and remove the version from the line:
path_provider: ^2.0.1
so it would look like this: path_provider:
run: pub get again
run your project again
Eventually I would recomment to migrate to the newest version of the SDKs and upgrade all your dependencies. This is just a temporary solution.
I have just upgraded my flutter version and now I am facing the following issue when I get the packages in pubsec.yml file:
Because every version of flutter_test from sdk depends on image 2.1.4 and Instant_Feedback depends on image ^2.1.9, flutter_test from sdk is forbidden.
So, because Instant_Feedback depends on flutter_test any from sdk,
version solving failed. pub get failed (1; So, because
Instant_Feedback depends on flutter_test any from sdk, version solving
failed.)
My pubsec.yml file
dependencies:
flutter:
sdk: flutter
http: ^0.12.0+2
shared_preferences: ^0.5.4+8
firebase_messaging: ^6.0.3
flutter_crashlytics: ^1.0.0
firebase_core: ^0.4.2+1
cupertino_icons: ^0.1.3
device_calendar: ^1.0.0+2
cloud_firestore: ^0.12.11
auto_size_text: ^2.1.0
flutter_expandable_menu: ^0.0.1
webview_flutter: ^0.3.17
flutter_spinkit: ^4.1.1+1
get_it: 2.1.0
bloc: ^0.15.0
flutter_bloc: 0.21.0
equatable: 0.5.1
rflutter_alert: ^1.0.3
expandable: ^3.0.1
connectivity: ^0.4.6
firebase_auth: ^0.15.1
flutter_email_sender: ^2.2.1
mockito: 4.1.1
flutter_secure_storage: ^3.3.1+1
image_picker: ^0.6.2+2
async: any
image: ^2.1.10
image_crop: ^0.3.1
flutter_cache_manager: ^1.1.3
circular_profile_avatar: ^1.0.3
package_info: ^0.4.0+12
flutter_local_notifications: ^0.8.4+3
flutter_webview_plugin: ^0.3.10
url_launcher: ^5.2.7
flutter_localizations:
sdk: flutter
flutter_cupertino_localizations: ^1.0.1
dev_dependencies:
flutter_driver:
sdk: flutter
test: any
ozzie: 2.0.1
flutter_test:
sdk: flutter
flutter:
uses-material-design: true
assets:
- lib/app/assets/images/
- lib/app/assets/flags/
- lang/en.json
- lang/de.json
Because every version of flutter_test from sdk depends on image 2.1.4 and Instant_Feedback depends on image ^2.1.9, flutter_test from sdk is forbidden.
I faced the same issue. Couldn't find the specific reason for the flutter_test depending on a specific version of this image library. Maybe it's an issue from the flutter side. So here are some workaround solutions:
comment out the flutter_test dev_dependency.
dev_dependencies:
# flutter_test:
# sdk: flutter
set the required version.
Instead of 2.1.12, I set the Image package version to 2.1.4 (as requested in the error message)
image: ^2.1.4
If more than one packages versions are noncompatible to each other, and you don't know their exact compatible version, you can find it by setting both the conflicting dependencies to any, e.g.
flutter_crashlytics: any
firebase_core: any
This will automatically figure out the compatible package version. Check these new compatible versions in pubspec.lock file, which will be auto-generated by running flutter package get.
# Generated by pub
# See https://www.dartlang.org/tools/pub/glossary#lockfile
packages:
flutter_crashlytics:
...
version: "1.0.0"
firebase_core:
...
version: "0.4.2+1"
Replace any with those correct versions.
flutter_crashlytics: 1.0.0
firebase_core: 0.4.2+1
Note: You should never leave your versions as any