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Questions tagged [dart-pub]

Pub is a package manager for Dart applications and libraries.

Pub is a package manager for Dart applications and libraries. You can find packages to use in a project or publish packages to the package repository. Pub automatically keeps track of dependencies to other packages and makes sure that the dependencies use the right version of a package.

Basics:

  • Use pub get to get dependencies
  • Use pub upgrade to upgrade a dependency
  • Use pub publish to make your library available for others

Resources:

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Flutter: Warning: Operand of null-aware operation '!' has type 'WidgetsBinding' which excludes null

Recently, my Debug Console was showing something that wasn't showing before. This happens when I use package flutter_typeahead. I don't know if this is an error or a warning. Below is my Debug Console: Launching lib\main.dart on Chrome in debug…
My Car
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Because project requires SDK version >=2.14.0 <3.0.0, version solving failed even though Dart SDK version is 2.14.0-350.0.dev

I want to make use of typedefs for variables in Dart thus I am trying to update minimum dart version to 2.14.0. When I change environment to environment: sdk: ">=2.14.0 <3.0.0" I get the following error [project] flutter pub get Running "flutter…
Chris
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Every version of integration_test depends on flutter_driver any from sdk which depends on crypto 2.1.5

I've been getting an error ever since I tried adding integration_test package along with get_test and it's primarily due to the fact that just_audio depends on crypto: ^3.0.0 while integration_test depends on crypto: ^2.1.5. I tried to look online…
Andrew Gabriel
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How to install something that requires pub install using Flutter SDK?

I'm trying to compile https://github.com/dart-lang/protobuf/tree/master/protoc_plugin According o the ReadMe, I should just run pub install. I have the flutter SDK that should include the Dart SDK. I tried: flutter pub install Could not find a…
Guerlando OCs
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How to compare timestamp to current time in flutter

This is my timestamp = "2020-05-29T17:43:39.622832+05:30". How can I pass it to a function readTimeStamp (it will give me error of not type of int)? date = DateTime.parse(bookDetails.timestamp); print(readTimestamp(date)); String…
krushi21
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type 'int' is not a subtype of type 'double' (flutter)

I am using CoinMarketCap API to fetch coin's data from server ,so i have a problem ! Android studio give me this message: type 'int' is not a subtype of type 'double' My problem almost from my model ,so this my models: Coin class import…
ABDULKARIM ALBAIK
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Were can I find "flutter pub list" or "flutter pub search" command line tools?

Where can I find a command line tool for searching and listing installed packaged versions and available upgrade versions? I can't think of any other package management tool that doesn't include commands to list installed versions or find available…
Brendon Whateley
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Error: No named parameter with the name 'onRatingChanged'

I try to run the app but I receive these errors : Compiler message: ../../../Developer/flutter/.pub-cache/hosted/pub.dartlang.org/rate_my_app-0.6.0+2/lib/src/dialogs.dart:272:17: Error: No named parameter with the name 'onRatingChanged'. …
Alex Ali
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How to fix - Name non-constant identifiers using lowerCamelCase

I have created a flutter application and added a custom theme data (themes.dart) Now everything works fine when I run it but I keep getting the error (Name non-constant identifiers using lowerCamelCase.) I'm not really sure why it is complaining…
Jaser
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Dart pub.dev published plugin, broken images in README.md

I published a plugin on pub.dev and also on GitHub, I have 2 screenshots displaying in README.md from Github link. These are fine on Github but are broken on pub.dev. I tried all approaches but still the same. Screenshot# 01 | …
Shahzad Akram
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Firebase Authentication error in Flutter Web

I am getting the error Expected a value of type 'String', but got one of type 'AssertionErrorImpl' while attempting to sign in using the FirebaseAuth. Below is my code: AuthResult result = await…
Sohail Durrani
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How to parse ICalendar format in Dart?

I need to parse iCal format in Flutter and I don't find any package for do it. Someone can tell me if it exist any solution for solve my problem?
Diego MARTINEZ WHITE
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NoSuchMethod in dart?

Getting warning while trying to use noSuchMethod(). The method missing isn't defined for the class Person. But according to the docs and other examples, whenever we call a non-existing member then, noSuchMethod() should be called. Whose default…
Shubhamhackz
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Dart - getting start - missing step - how to install pub

I'm trying to get started and setup to develop Dart. I'm following the instructions on https://webdev.dartlang.org/guides/get-started to install on Linux. However there seems to be an essential step missing. On the above link, step 2 is about…
Magick
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How can I logout of Dart Pub CLI?

I published a package and logged into the wrong account. I corrected the uploaders by using flutter packages pub uploader add flutter packages pub uploader remove But now when I try to push an update I am…
Jacob Phillips
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