Flutter for Web: webdev serve throws error: webdev could not find pubspec.yaml in “C:\…”

2
votes

I am trying to run a Flutter for web project, which was working just fine, until I ran flutter packages run, after which webdev serve gives the error above. My project is located in a different directory, E:\Flutter_web_try to be specific, which has a pubspec.yaml file.

I have already tried flutter pub pub packages get, reinstalling flutter, deactivating and reactivating webdev but none of those have worked. No new flutter_web project I create is running either, and throws the same error. I have also tried installing a fresh version of Flutter, with the env variables changed, but still the error remained the same.

webdev could not run for this project.
Could not find a file named "pubspec.yaml" in "C:\Users\Sanchit\AppData\Roaming\Pub\Cache\hosted\pub.dartlang.org\protobuf-0.13.12".```

It should run properly, and tell me the default port at which the project is being served on, which it did before the flutter packages get command.
2
flutterdart
Try using flutter packages pub global run webdev serve in your terminal and tell us the output. – Ryk
No active package webdev. pub finished with exit code 65 – Imperpetual Machine
Try using pub global activate webdev to activate the package. – Ryk
Was already active, ran this command, still gives the same error – Imperpetual Machine

2 Answers

3
votes

You're having that issue because your webdev path is not setup correctly. If you still want to run your web app, go to that path and execute:

flutter packages pub global run webdev serve

Same thing if you want to build your web app to release:

flutter packages pub global run webdev build

be sure to finish your webdev serve (control + c) before building or is not going to work.

0
votes

Try running this command in your project directory.

pub get

It will install all missing dependencies. In your case protobuf-0.13.12.