Pub failed to delete entry because it was in use by another process

user_12864474 0
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I was trying to configure my Flutter project to work on the web. I switched to the master channel using flutter channel master after doing this I tried to run flutter upgrade. I am now getting an infinite loop saying:

Building flutter tool...
Running pub upgrade...
Pub failed to delete entry because it was in use by another process.
This may be caused by a virus scanner or having a file
in the directory open in another application.
Error (1): Unable to 'pub upgrade' flutter tool. Retrying in five seconds... (9 tries left)

Waiting for 0 seconds, press CTRL+C to quit ...
Running pub upgrade...
Pub failed to delete entry because it was in use by another process.
This may be caused by a virus scanner or having a file
in the directory open in another application.
Error (1): Unable to 'pub upgrade' flutter tool. Retrying in five seconds... (8 tries left)

Waiting for 2 seconds, press CTRL+C to quit ...
Terminate batch job (Y/N)? Y

I have tried multiple things such as running flutter clean, trying to change back to the stable channel, deleting the cache folder in the flutter/bin directory, turning off my windows defender, nothing seems to work. Now when I try to run flutter doctor, or any other flutter command, I get the same infinite loop with the same message. I have also tried manually downloading and replacing my flutter sdk installation with a new installation, this did not work either. Is my only option at this point to delete flutter completely and reinstall from scratch?

I would appreciate any suggestions on how to fix this.

dart flutter
9 Answers

I ran my compiler as an administrator, and it worked for me. Open your Android Studio or Visual Studio as an admin.

user_141772280

I was running into this issue and discovered that the problem was a new dependency that I added. In my case it was assets_audio_player: ^3.0.3+1, but of course it could be any dependency. Deleting it immediately fixed my problem.

user_150045490

Faced this problem and had to run "start ms-settings:developers" at terminal. It solved the issue.

user_92385030

On windows: Run vscode, or the terminal you are using, as admin to resolve the problem. For Linux: I think some kind of sudo approach could do the trick.

user_138963200

run flutter upgrade in an external admin cmd console

user_107727430
user_46166870

switch your channel to stable or master using command "flutter channel stable"

user_135136790

I have solved it. I recommend instead of C:/src/flutter, you put the flutter folder inside C:/ direct. Would be like this:

C:/flutter

If that doesn't solve it, try pausing your anti-virus just for us to test. It could be that it is blocking the permissions on local disk C folder. It's not very common, but it can happen sometimes.

user_153055550

Running VS Code or Android Studio as Administrator, will probably solve the problem.

user_118120060
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