Waiting for another flutter command to release the startup lock

Question

When I run my flutter application it show

Waiting for another flutter command to release the startup lock

this messages and not

Answer 1

In Windows :

Press: Ctrl + Alt + Delete

• In task manager find out your editor such as VS Studio or Android Studio
• In that Find "dart" and End that Task
• Then close your editor
• Open editor again
• let editor to complete all things, after that run your query that will work

Answer 2

Exit from your IDE, then from start manager stop all dart related files(if any have).
Then go to
"FLUTTER DIRECTORY"/bin/cache/lockfile
and delete this lockfile

Answer 3

This occurs when any other flutter command is running in background. To solve this you can run for mac

killall -9 dart

and for windows open task manager. Then in processes tab, search for dart process and kill all of them. Hope this helps you.

Answer 4

If you are using Windows, you can open the task manager and under the 'Processes' tab search for processes named 'dart'. End all those tasks.

Answer 5

In VS code run

flutter clean

in the terminal. This fixed my issue.

Answer 6

I just left the terminal open for a minute. then it started working fine again.