Visual Studio Code - Target of URI doesn't exist 'package:flutter/material.dart'

Question

I\'ve just setup my Macbook for flutter development,

So I downloaded flutter sdk, and placed it in my Documents. After, I setup my path variable to

Answer 1

Open the command palette (ctrl+shift+p), type flutter: get packages (should autocomplete); after it resolves open the command palette again and type reload window and execute the command. This should resolve the issue as quickly as possible.

Answer 2

If you have used the flutter packages get command and the error still persists, you can simply reload VS code the Developer: Reload Window command. Simply type that in after pressing Ctrl+Shift+P (Cmd+Shift+P for Mac users). It will clear the error. It's like refreshing VS Code.

Answer 3

Warning! This package referenced a Flutter repository via the .packages file that is no longer available. The repository from which the 'flutter' tool is currently executing will be used instead.
running Flutter tool: /opt/flutter previous reference : /Users/Shared/Library/flutter This can happen if you deleted or moved your copy of the Flutter repository, or if it was on a volume that is no longer mounted or has been mounted at a different location. Please check your system path to verify that you are running the expected version (run 'flutter --version' to see which flutter is on your path).

Checking the output of the flutter packages get reveals that the reason in my case was due to moving the flutter sdk.

Answer 4

I was trying use the audio players flutter package. Once I added it to pubspec.yaml and tried to import it to main.dart, I got the same error.

I tried to restart my IDE but that didn't help so i tried running flutter packages pub cache repair and it worked.

Answer 5

Basically

1. Check for correct indentation of your package in dependencies
2. if your editor supports, it automatically runs -> flutter pub get
3. Either way -> open terminal-> flutter pub get or flutter packages get
4. check .packages file, see if your package is present else reinstall package
5. Most important : Restart your IDE (Visual studio or Android Studio)

Start debugging your project

Most probably , your errors will be fixed by then

Hope it works for you

Answer 6

If you change the property name in pubspect.yaml all your package in lib folder turn to red with the error Target of URI doesn't exist...