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I looks like your pub cache is corrupted. You can try to run pub cache repair from the command line but I think that this is still not working when the pubspec.yaml file is missing (there was an open issue about this - found it: http://dartbug.com/21418). Please try to delete the folder /home/reza/.pubcache/hosted/pub.dartlang.org/browser-0.10.0+2 and then run pub get from within your project directory or from DartEditor.
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For Windows user
C:\Users\UserName\AppData\Local\Pub\Cache
Delete this Cache folder
Then, go to project, run
flutter pub get
Put your flutter sdk path before your original command, remove the flutter before the original command
> D:\sdks\flutter3.3.10\bin\flutter.bat pub run
then simply press enter
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Had a very similar error message recently after running flutter doctor :
Building flutter tool...
Could not find a file named "pubspec.yaml" in "/opt/flutter/.pub-cache/hosted/pub.dartlang.org/test-1.20.2".
Error: Unable to 'pub upgrade' flutter tool. Retrying in five seconds... (9 tries left)
Could not find a file named "pubspec.yaml" in "/opt/flutter/.pub-cache/hosted/pub.dartlang.org/test-1.20.2".
Error: Unable to 'pub upgrade' flutter tool. Retrying in five seconds... (8 tries left)
^CError: Unable to 'pub upgrade' flutter tool. Retrying in five seconds... (7 tries left)
Resolved by:
sudo chmod -R g+rwx /opt/flutterNote - Problem reappeared after upgrading Flutter to 3.0. This seems to confirm that the default flutter permissions did not respect my group ownership for all new files. Following the fix to the group permissions, flutter was able to complete my upgrade to 3.0.1.
Note: My initial error was pointing to this particular folder.
/opt/flutter/bin/cache/pkg/sky_engine
I touched the pubspec.yaml file and then did a cat on the file to
confirm that it existed. The file was there with all the yaml type
info.
Next I checked the permissions (using ls -ll) and noticed that my group did not
have the correct permissions set to the pubspec.yaml file in the
folder. (my user-account doesn't own the folder but my group has access)
After logging in as the authorized user account; I changed the group permissions
using sudo chmod -R g+rwx /opt/flutter/bin and then verified my permissions on the files in the target folder.
Ran flutter pub get from the project folder with no more trouble.
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It worked for me.
sudo rm -Rf /Users/username/Desktop/flutter/.pub-cache
take care, the path must be right!
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in my case, could be yours too, I am linux(debian) user, I've a problem like this :
Could not find a file named "pubspec.yaml" in "/opt/flutter/.pub-cache/hosted/pub.dartlang.org/analyzer-1.7.1".
pub finished with exit code 66
and i fix it, with following comands:
sudo rm -Rf /opt/flutter/.pub-cache
sudo rm -Rf packages
flutter pub get
You don't have to delete or repair the entire cache (takes a long time)
You can simply delete the problematic package, in this specific case:
/home/reza/.pubcache/hosted/pub.dartlang.org/browser-0.10.0+2"
But make sure to copy the value from your error message.
Then run:
flutter pub get or pub get
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I had the same problem. to resolve the problem I tried many ways suggested on the internet, but nothing worked. then I went to the path C:\Users\pc\AppData\Local\Pub\Cache and deleted "Cache" folder and after deleting this folder I restarted IDE and run the "pub get" command and it solved this problem.
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For me neither worked deleting .pub-cache or packages from project root. The solution was removing the directories from ~/.pub-cache/git seperately.
In my case I have had 6 packages hosted on git so I have had to remove each package and call flutter pub get every time for all the 6 packages.
After doing that, everything seems working perfectly fine.
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Thanks for David's answer which helped me to find and delete pub cache directory in my mac.
sudo rm -Rf /Users/<user-name>/Developer/flutter/.pub-cache
There's a change in the path mentioned by David.
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this will also occur if your pubspec.yaml file reffers to some other pubspec file. Try removing paths from the pubspec.yaml and replace with a version instead, like this.
flutter_local_notifications:
path: ../
To This
flutter_local_notifications: ^4.0.1+1
Deleting the cache isn't necessary, the issue means the pkg couldn't be found in the cache.. simply install/activate the pkg to make it globally accessible using;
dart pub global activate package_name
In my case, Flutterfire was failing to run.
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I was facing a similar issue when running even a simple dart run:
Could not find a file named "pubspec.yaml" in '/Users/<username>/.pub-cache/hosted/pub.dartlang.org/animated_widgets-1.1.0'
So I managed to fix it by these steps:
sudo rm -Rf /Users/<username>/.pub-cache.flutter clean in the current project folder.dart pub getflutter pub getAnd it finally worked
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In my case, it happened after I was update flutter version.
cd to the current project folder.
flutter clean
flutter pub get
finally flutter packages pub run build_runner build
It's Worked~
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pub get failed (66; Could not find a file named "pubspec.yaml" in "/Users/osx/flutter/.pub-cache/hosted/pub.dartlang.org/ percent_indicator-3.0.1".)
Solution
The simple solution would be to delete your /osx/flutter/.pub-cache folder and then flutter pub get.
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In my case I had some error in pubspec.yaml file, after fixing the error in pubspec.yaml the error disappeared
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I got the same error and tried to resolve it by going to the location displayed in the debug console, deleting the packages directories displayed there, and then running pug get
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FileSystemException(path=/Users/username/Documents/development/flutter/bin/cache/pkg/sky_engine/lib/_embedder.yaml; message=Cannot open file) [SEVERE] mobx_codegen:mobx_generator on lib/view/main/squad/viewmodel/view_model.dart (cached):
sudo chmod -R g+rwx /Users/<username>/Documents/development/flutterrm -rf cachesudo rm -Rf .packagesflutter cleanflutter pub getflutter packages pub run build_runner build
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On MacOs I had to run:
sudo rm -Rf /opt/homebrew/Caskroom/flutter/2.8.1/flutter/.pub-cache
Prior to this I tried most of the above but was still getting the same error, 'cannot find a .yaml' file
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rm pubspec.lock(MacOS)/del pubspec.lock(Win)flutter cleanflutter pub cache cleanflutter pub getThis should do the work.
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In my case this error appeared after forking a package and trying to reference my fork. Turned out that
package:
git:
url: https://github.com/company/package.git
ref: master
tried to search for a pubspec.yaml in the root of the repo which doesn't exist. So I had to tell my pubspec where to look.
package:
git:
url: https://github.com/company/package.git
ref: master
path: subfolder
This solved the issue for me.
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After trying many solutions, I found one that works for me.
flutter clean flutter pub get
Note: Run above commands in terminal not from Tools->flutter->flutter clean / flutter pub get
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For windows, cleaning the pub cache worked for me, I am also using Flutter version manager
flutter pub cache clean
then use
flutter pub get
just add fvm at the start if you're also using it
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This solution works on the newer versions of flutter. If you can not find your pub cache, you will find it here:
C:\Users\[username]\AppData\Local\Pub
Delete the Cache folder
Run pub cache repair
Run flutter pub get
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1.Just delete flutter from root folder like "C:/src/flutter".
2.Download from here https://docs.flutter.dev/get-started/install/windows
3.Set the path inside user variables under Edit environment variables.
4.Then just reset the path on android studio....
after that the problem will be gone.
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I resolved this issue using these steps in MacOS:
This has happened to me several times:
What's ultimately solved things for me (OS X) is deleting pub's cache:
sudo rm -Rf /Users/<username>/.pub-cacheAlso, delete the packages directory in your project's root:
sudo rm -Rf .packagesThen
pub getagain in your project(s), but make sure that you are not operating as root (awhoamiwill tell you, and anexitwill get you out of there).