Flutter packages get does not install new package

Question

I'm trying to install a package (dynamic_theme) in flutter. When I run flutter packages get -v it does not even try to install the package.

So far I've tried:

Running flutter packages get
Running flutter packages get
Restarting my computer
Updated flutter
Added another package but that did not install either
Updated Android Studio

In my pubspec.yaml I've put:

dependencies:
  flutter:
    sdk: flutter
  firebase_core:
  cupertino_icons: ^0.1.2
  dynamic_theme: ^1.0.1 # the package does not install
  uuid: 2.0.0 # the package does not install

In the logs for the verbose run of flutter packages get where it installs the packages it outputs:

[ +422 ms] Running "flutter packages get" in quiz_app... (completed in 0.4s)
[  +57 ms] Found plugin firebase_core at E:\Other\SDKs\flutter\.pub-cache\hosted\pub.dartlang.org\firebase_core-0.3.4\
[  +13 ms] Found plugin shared_preferences at E:\Other\SDKs\flutter\.pub-cache\hosted\pub.dartlang.org\shared_preferences-0.5.2\
[ +141 ms] Found plugin firebase_core at E:\Other\SDKs\flutter\.pub-cache\hosted\pub.dartlang.org\firebase_core-0.3.4\
[   +6 ms] Found plugin shared_preferences at E:\Other\SDKs\flutter\.pub-cache\hosted\pub.dartlang.org\shared_preferences-0.5.2\
[  +26 ms] "flutter get" took 718ms.

I expected that flutter downloaded and installed the packages, but it does just check for updates on the already installed packages like firebase_core.

Why don't you have a version for ```firebase_core```? Is that a copy-paste mistake or your actual pubspec.yaml file? I think that might be your problem (looking at your comments). The current version out there is ```0.3.4```. — tomerpacific, Apr 20 '19 at 08:20
I think that not specifying the version always gets the latest, but I can try changing it. — Alve, Apr 20 '19 at 08:27
@tomerpacific Specifying the version did not help. It downloads 0.3.4 during both with and without the version. — Alve, Apr 20 '19 at 08:58
@Alive - I have two things to suggest : either try starting a fresh new project and only add the desired library and see what happens. Or, have you tried running ```flutter clean```? — tomerpacific, Apr 20 '19 at 09:34
`flutter clean` did not change anything. Starting a new project did not install the package either. I tried installing the package UUID which I know works but that did not install either. — Alve, Apr 20 '19 at 09:44
@Alive - without the dynamic theme package, do other packages install successfully? — tomerpacific, Apr 20 '19 at 09:55
@tomerpacific Removing the dynamic theme package from the dependencies did not allow other packages to be installed. — Alve, Apr 20 '19 at 10:07

score 51 · Answer 1 · answered Sep 19 '19 at 23:36

51

Close and open your editor. Worked for me ;)

answered Sep 19 '19 at 23:36

Sebastián Lara

5,355
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21

I was using my sanity over this. Unbelievable. Thanks – Andre Pena Feb 03 '22 at 21:16

score 42 · Answer 2 · edited Apr 02 '21 at 13:52

42

so basically run:

flutter clean

flutter packages get

flutter packages upgrade

Restart Android Studio or Visual Studio

you can restart VSC by:

ctrl + shift + P and then a search bar will appear and then type: "restart" and smash the Enter key.

edited Apr 02 '21 at 13:52

Tshilidzi Mudau

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answered Feb 27 '20 at 23:17

Neil Rodriguez

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score 19 · Answer 3 · answered Feb 16 '21 at 17:28

19

hi I have a similar problem I deleted a package from the dart packages folder and when I run flutter pub run it won't download and work so I tried all the way people said but something worked for me is I tried to repairing pub cache and it worked just run

flutter pub cache repair

answered Feb 16 '21 at 17:28

reza47

650
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Thank you, reza47. I had the same problem when I tried to re-install the same package after the removal, nothing worked till I tried your sugges – dwcho Apr 01 '21 at 21:33
Only a restart worked for me. However, this has helped me with other similar issues! – Oprimus Jan 17 '22 at 21:36
for me it was that command then flutter clean then flutter pub get – Ahmed Nabil Sep 10 '22 at 20:30

score 9 · Answer 4 · edited Nov 04 '19 at 05:49

9

I am currently experiencing this situation. When looking into it deeper, I've found that the packages never actually install themselves into the flutter packages folder.

The response I'm getting is exit code 0, with no error actual being reported.

When I put in my import 'package:english_words/english_words.dart'; it just shows up as a problem.

edited Nov 04 '19 at 05:49

Usman Khan

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answered Nov 03 '19 at 20:10

Micah Johns

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Shahryar Rafique · Answer 5 · 2020-06-06T05:12:27.890

6

To install package you have to press double enter after the dependencies: flutter: sdk: flutter carousel_pro: ^1.0.0 Then Package name e.g: carousel_pro: ^1.0.0. Enter,spaces, and back spaces matter in pubspec.yaml File. I hope this resolve the issue.

edited Jun 06 '20 at 05:12

answered Nov 21 '19 at 16:40

Shahryar Rafique

123
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8

it resolved my problem too, it is funy : ) – erkan demir Jun 10 '21 at 11:34

score 5 · Answer 6 · edited Dec 07 '21 at 15:36

5

In Visual studio code, the thing that fixed it for me was

Command+Shift+P and then search "Dart: restart analysis server", in the pop up bar.

after the analysis was finished it worked like a charm.

edited Dec 07 '21 at 15:36

Dharman

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answered Dec 07 '21 at 15:30

Jonas Smith

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1

`F1` > `Restart Dart Analysis Server` in Android Studio worked too. – Regular Jo Apr 12 '22 at 18:46

score 4 · Answer 7 · answered Mar 19 '22 at 14:56

4

If you delete a package from External Libraries > Dart Packages, you need to run --> flutter pub cache repair This will reinstall all the external libraries and update the missing ones. Get dependencies or Pub get and you are good to go!

answered Mar 19 '22 at 14:56

Safi50

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score 3 · Answer 8 · answered May 12 '22 at 12:46

3

If anyone of you is using Android Studio then Going to File->Invalidate Caches/Restart is your friend.

This is what has helped me, getting the updated dependencies for Android Studio.

answered May 12 '22 at 12:46

B.shruti

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Restart worked even with VS Code, it's weird but it worked – Arham Anees Aug 02 '22 at 08:23

score 2 · Accepted Answer · answered Apr 20 '19 at 10:38

2

Something solved it randomly. I did not do anything but try multiple times. After some 10 attempts it downloaded and installed both uuid and dynamic_theme.

answered Apr 20 '19 at 10:38

Alve

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score 2 · Answer 10 · answered Apr 11 '21 at 17:01

2

I had the same issue when I had my project in my google drive folder which has a space in the path. I moved it to the android studio folder and then pub get worked fine

answered Apr 11 '21 at 17:01

rjh500

45
9

Not sure why the down vote. This worked for me, seems a bit unfair – rjh500 May 12 '21 at 19:55
Don't worry, I'm here to save the day with a +1 :) – Petro Aug 16 '21 at 18:04

score 1 · Answer 11 · answered Apr 20 '19 at 09:51

1

Try to add ^ to uuid: 2.0.0
Good luck

  // The last version is 
uuid: ^2.0.1

answered Apr 20 '19 at 09:51

GirlWhoCode

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I tried that, it did not change anything but now randomly like 10 attempts of just `flutter packages get -v` it downloaded both uuid and dynamic_theme. – Alve Apr 20 '19 at 10:37

score 1 · Answer 12 · answered Apr 15 '20 at 18:34

1

in pubspec.yaml click Pub get it work for me

answered Apr 15 '20 at 18:34

Ahmed Ehab

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score 1 · Answer 13 · answered Oct 02 '20 at 05:51

If you are using IntelliJ or Android Studio, do the following:

flutter clean
flutter packages get

and then click on File -> Invalidate Caches / Restart

After the IDE restarts chances are you may still face error but this time when you hover the code the import library tooltip will show

score 1 · Answer 14 · answered Mar 07 '21 at 12:15

1

If you moved your project files from to a newly created project (probably because of AndroidX migration), check that your new pubspec.yaml is the same as the previous one or your code will blow up with package errors.

answered Mar 07 '21 at 12:15

Victor Eronmosele

7,040
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score 1 · Answer 15 · answered Aug 12 '21 at 08:01

1

I hit flutter pub get . Though it ended with exit code 0 , i couldnt access my dependency lib classes via intellicense.

I restarted Android studio with Invalidate & Restart. That fixed the issue for me.

answered Aug 12 '21 at 08:01

Avinash Ch

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5

score 1 · Answer 16 · edited Oct 12 '21 at 15:28

1

I fixed this issue by accepting Android Licenses using flutter doctor --android licenses. Note that you must install android SDK command-line tools to make this command work.

Steps:

Install command-line tools via SDK manager
Accept android licenses
Run flutter pub get

edited Oct 12 '21 at 15:28

Dharman

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answered Oct 12 '21 at 15:23

bashizip

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score 1 · Answer 17 · answered Aug 26 '22 at 11:03

1

in pubspec.yml be sure you add your packages under dependencies not dev_dependencies

answered Aug 26 '22 at 11:03

Abdelkhalek Haddany

195
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score 0 · Answer 18 · answered Oct 09 '20 at 09:37

Some quick fix for Android Studio :

Check proper space before package name ( very much important )

Click on Pub get or from terminal run command flutter packages get , and you can download these dependencies, After successfully downloading the package, This warning is just here to reminds you that your dependencies aren't downloaded => Click on Get Dependencies of the first warning

If you still getting error then follow below steps:

Clean App : Android Studio > Tools > Flutter > Flutter Clean
Restart Android Studio

score 0 · Answer 19 · answered Oct 22 '20 at 04:22

After the update (23 September 2020) of Android Studio 4.1 the builtin terminal is not working for getting new packages. Solution: Run the command prompt in Administrator mode. Go to your project directory and run command flutter clean after that run flutter pub get.

score 0 · Answer 20 · answered Dec 24 '20 at 06:13

0

in my case nothing has happened after flutter upgrade, clean, pub get, etc. but when I restart my project it automatically gets pub Packages in VS code.

in a menu bar, Run => start debugging.

answered Dec 24 '20 at 06:13

Muhammad Kashif

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score 0 · Answer 21 · answered Jun 22 '23 at 10:46

0

In my case it was happening with a cloned repo from github https://mixable.blog/flutter-generating-g-dart-files-for-json-serialization/

I found the answer on the above link and it helped me sort out the issue

answered Jun 22 '23 at 10:46

eng tamuka

1
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Flutter packages get does not install new package

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