在 flutter 应用程序中添加提供程序 package 时出错

Question

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

Answer 1

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

Answer 2

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

Answer 3

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.