Conflict between dependencies when adding a new one - flutter

These were my dependencies in my pubspec.yaml:
dependencies:
...
image_picker: ^0.8.4+2
...
And everything worked fine, but now I added this:
dependencies:
...
image_picker: ^0.8.4+2
...
image_editor_pro: ^1.1.8
And running pub get I have this error:
Because image_editor_pro >=1.1.0 depends on image_picker ^0.7.4 and provauth depends on image_picker ^0.8.4+2, image_editor_pro >=1.1.0 is forbidden.
So, because provauth depends on image_editor_pro ^1.1.8, version solving failed.
pub get failed (1; So, because provauth depends on image_editor_pro ^1.1.8, version solving failed.)
I tried downgrading my version of image_picker but I get a new error:
Cannot open file, path = 'C:\Users\loren\flutter.pub-cache_temp\dir60565baa\test\fixtures\invalid\n_structure_<.>.json' (OS Error: Syntax of the name of the file, of the directory or of volume is not correct (This is my bad translation of the error).
, errno = 123)
pub get failed (66; , errno = 123))
What can I do to solve and use both the dependencies?

You can try to override the dependency so only one version is used for your project. Something like this:
name: your_app
dependencies:
image_picker: ^0.8.4+2
image_editor_pro: ^1.1.8
dependency_overrides:
image_picker: '0.8.4+2' # Use only this version for all the code depended on image picker
But you need to thoroughly tested the library that depends on the overrided dependency to check if it not introducing you a new error.
See https://dart.dev/tools/pub/dependencies#dependency-overrides

Seems like there is a conflict with image_editor_pro because the package is old.
It is better to look for another updated package with null safety, like image_editor 1.0.2, this won't have conflictions with image_picker 0.8.4+1.
And if you are willing to downgrade. ## Downgrading is a pain
You might need to downgrade the other dependencies as well. which might lead to Downgrading the Dart version.
After downgrading execute this command:
flutter clean
Then delete pubspec.lock file.

If a conflict between dependencies occurs, the simplest solution is to remove the version numbers of the two dependencies and then replace them with 'any' without the quotes in front of it. Then run pub get.
Hope you can help

Related

Flutter dependency conflict (versions depend on another )

I want to add avtar in my App but not able to do this because of dependency conflict/ required version error. I also trying to override dependency but its still not working. also trying this commands.
Flutter clean
Flutter pub get
But still not working.
ERROR:-
Because no versions of random_avatar match >0.0.7 <0.1.0 and random_avatar 0.0.7 depends on flutter_svg ^1.0.3, random_avatar ^0.0.7 requires flutter_svg ^1.0.3.
And because flutter_html >=2.0.0-nullsafety.1 <3.0.0-alpha.1 depends on flutter_svg >=0.22.0 <1.0.0, random_avatar ^0.0.7 is incompatible with flutter_html >=2.0.0-nullsafety.1 <3.0.0-alpha.1.
So, because seedwill_demo depends on both flutter_html ^2.2.1 and random_avatar ^0.0.7, version solving failed.
pub get failed (1; So, because seedwill_demo depends on both flutter_html ^2.2.1 and random_avatar ^0.0.7, version solving failed.)
I guess You working on Flutter 2, but Flutter 3 is released. On pub, some libraries are default compatible with Flutter 3. In this case, not always newest library is the best option. You must find which library is incompatible. Can You put pubspec.yaml to this post? We need TWO version of pubspec.yaml. Previous (which have no error with pub get) and new, with this new library. If You show them, I try find the best version of library for You.
I had problems that look alike, and somehow managed to eliminate them by upgrading flutter parts (updating or reinstalling). Have you tried following commands?
flutter clean
flutter upgrade
flutter pub upgrade

Trying to do a flutter pub get and got Process finished with exit code 66

Running "flutter pub get" in mobile...
Because mobile depends on charts_flutter from path which doesn't exist (could not find package charts_flutter at "../mobile-dependencies/pub.dartlang.org/charts_flutter-0.12.0"), version solving failed.
pub get failed (66; Because mobile depends on charts_flutter from path which doesn't exist (could not find package charts_flutter at "../mobile-dependencies/pub.dartlang.org/charts_flutter-0.12.0"), version solving failed.)
Process finished with exit code 66
/Users/H025712/development/flutter/bin/flutter --no-color pub get
Running "flutter pub get" in mobile...
Because mobile depends on charts_flutter from path which doesn't exist (could not find package charts_flutter at "../mobile-dependencies/pub.dartlang.org/charts_flutter-0.12.0"), version solving failed.
pub get failed (66; Because mobile depends on charts_flutter from path which doesn't exist (could not find package charts_flutter at "../mobile-dependencies/pub.dartlang.org/charts_flutter-0.12.0"), version solving failed.)
Cause: Someone in your team (could be yourself) add a plugin from their local folder. This plugin can't be found when you try to update the dependency.
Quick fix: If you use remote git, let you teammate include that plugin in the project folder, modify the pubspec.yaml path, add it to stage, commit then push. In the case not using git remote, copy those files to your computer in the path as pub spec.yaml suggested.
Ideal fix: Let your teammate use public plugin or share that plugin in private with password, then let flutter download that plugin by flutter pub get/upgrade.
Check your pubspec.yaml is well ordered, I had badly composed dev_dependencies and it failed me
Talked to my tech lead, who is familiar with the code; he said to check out the missing code that was referencing overrides in the pubspec.yaml:
https://dart.dev/tools/pub/dependencies
Dependency overrides
You can use dependency_overrides to temporarily override all references to a dependency.
For example, perhaps you are updating a local copy of transmogrify, a
published library package. Transmogrify is used by other packages in
your dependency graph, but you don’t want to clone each package
locally and change each pubspec to test your local copy of
transmogrify.
In this situation, you can override the dependency using
dependency_overrides to specify the directory holding the local copy
of the package.
The pubspec would look something like the following:
name: my_app
dependencies:
transmogrify: ^1.2.0
dependency_overrides:
transmogrify:
path: ../transmogrify_patch/

Flutter: build runner throws a precompile error

I am using analyser 1.7.1. The latest build_runner build command generates the following error.
flutter packages pub run build_runner build Failed to precompile
build_runner:build_runner:
../../../sdk/flutter/.pub-cache/hosted/pub.dartlang.org/analyzer-1.7.1/lib/src/error/best_practices_verifier.dart:1998:14:
Error: A non-null value must be returned since the return type
'String' doesn't allow null. String get displayString {
The usual flutter clean and pub cache repair commands don't seem to be fixing the problem, and displayString doesn't appear anywhere in my codebase.
There's an issue open 9 days ago. Here's the key part:
Right now, the current state of affairs is that:
package:analyzer 1.7.0 requires package:meta ^1.4.0
package:analyzer 1.7.1 has the same contents as 1.7.0, but requires package:meta ^1.3.0
Flutter stable pins package:meta to 1.3.0
I'm uncertain how we're running into the exceptions above - the two most recent versions of analyzer are pretty explicit about which version of meta they need.
#edlman do you have any dependency_overrides in your pubspec?
you're right, I'm using 3rd party pkgs which depend on meta 1.4.0 so I put it to dependency_overrides to solve the collision. It didn't come to my mind it cause such a problem.
I've changed the override to 1.3.0, it works fine, no problem yet
So I'd suggest checking whether or not there's a dependency_overrides in your pubspec, too.
It's a problem with analyser 1.7.1.
Add
dependency_overrides:
analyzer: 1.7.0
to pubspec.yaml.
There are more details available in raina77ow's answer.

Error when add Provider package in flutter app

I want to add Provider package in my flutter app, but has error like follow image:
flutter pub pub add provider
This link don't solve it
I solved it :)
The name of your project can not be equal to package name.
The name of my project is provider and that is compiler gave an error.
In your package's pubspec.yaml add this line like below. Then run pub get/pub upgrade:
dependencies:
provider: ^5.0.0
Note: Indentation must be considered. Not valid
dependencies:
provider: ^5.0.0
This error is caused due to versioning error.
In your pubspec.yaml file
dependencies:
provider:
Leave the version blank, it will automatically select the best one according to
the other packages.
After this run flutter pub get

Because every version of flutter_test from sdk depends on... flutter_test from sdk is forbidden, version solving failed

I'm having this issue when I've added http dependency in my flutter project. Can anyone please help me with it?
If you get the message:
Because every version of flutter_test from sdk depends on...
It means flutter_test depends on a dependency with version lower than you specified in another dependency.
To solve this, open pubspec.yaml, and remove the version number of the problem dependency:
Example:
Change
archive: ^2.0.13 --> remove this number
To:
archive:
You have provided or trying to use http: ^0.12.0 dependency on implementing API calls in pubspec.yaml file but flutter_test will require http: ^0.11.3+17. That's why it fails. Please replace
dependencies:
flutter:
sdk: flutter
http: ^0.12.0
with
dependencies:
flutter:
sdk: flutter
http: ^0.11.3
Hope it will help you out.
In my case, I somehow deleted sdk: flutter:
dependencies:
flutter:
sdk: flutter
I was facing a similar error. I solved it by removing all the version numbers from the dependencies: section in pubspec.yaml.
So, if my pubspec.yaml looked like this before:
dependencies:
freezed_annotation: ^0.14.3
I changed it to this:
dependencies:
freezed_annotation:
I'm assuming this fetches the latest "possible" version of each package.
Can you please provide the dependencies in your pubspec.yaml? It looks like your app depends on at least http 0.12.0 but flutter_test specifically requires http 0.11.3+17 (an older version) which makes it fail.
If your app doesn't have too many dependencies that could broke, you can try to upgrade your Flutter version: flutter upgrade.
It most probably will fix this problem. But always be sure to understand that your app might break at unexpected places.
So you're fine if:
either you're doing it for small app
or it's big app at work and it has extensive tests that will tell you something has broken
if big app without tests, be sure to test every important place of the app, where dependencies are being used
Try to change the dependency version that you were added in your pubspec.yaml file
don't use the current or latest version try some previous versions of dependency.
for ex - if you are using latest sqflite version then chnage to previous version of that and then re-run your whole project.
In my case IDE referred to an an older version of dart because of fvm. Seems like 'run' button called fvm flutter run, but not flutter run as I expected. After I deleted fvm folder from the project the problem has gone.
Change depending attributes version inside pubspec.yaml
if it says depands on http *** than change http version
or if it says depands on collection *** than change collection version.