Flutter: Waiting for another flutter commando to release the startup lock

Question

The following steps were attempted:

Delete the folder ./build with the command: flutter clean
Delete duplicate .dart processes but it does not work
Delete the .lockfile file, but when I delete it, it generates it again

My operating system is: Windows 10 Professional 64 bits
I am using: Android Studios

Here is the link to the publication that I read before asking this question: Url: Waiting for another flutter command to release the startup lock

In the list of processes I see 2 or 3 .dart read that closing the .dart process made the construction of the project work. But it is not working.

I would appreciate any help, thanks.

tried to run `flutter` command from the terminal window? does it print out anything? — pskink, Feb 19 '19 at 11:55
Do you mean to build the application from the windows terminal? — DomingoMG, Feb 19 '19 at 12:23
I closed all .dart processes and also Android Studios. Then I opened the Windows terminal, I accessed the project and wrote the Flutter build apk but it keeps saying the same thing. "Waiting for another flutter commando to release the startup lock". https://i.gyazo.com/aff301164787df834e715fdb7ebce294.png — DomingoMG, Feb 19 '19 at 12:32
Yes, when you delete and run the command: Flutter build apk rebuilds it again. — DomingoMG, Feb 19 '19 at 12:47
Let us [continue this discussion in chat](https://chat.stackoverflow.com/rooms/188679/discussion-between-domingomg-and-pskink). — DomingoMG, Feb 19 '19 at 12:49

score 7 · Answer 1 · edited Jul 13 '19 at 02:16

7

if your OS is Windows, try this:

taskkill /F /IM dart.exe

if your OS is OSX, try this:

killall -9 dart

edited Jul 13 '19 at 02:16

Imran

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answered Jul 13 '19 at 01:21

Wellen zhong

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score 4 · Answer 2 · edited May 29 '20 at 20:49

4

Try using the following command in terminal window:

killall -9 dart

edited May 29 '20 at 20:49

Boken

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answered May 12 '19 at 11:40

Laxman Kumar

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score 3 · Answer 3 · answered Jul 24 '20 at 07:16

3

killall -9 dart did no luck for me.

I had to delete flutter/bin/cache/lockfile but after deleting a restart was mandatory for solving my problem

How to delete the lock file

cd flutter/bin/cache
rm -rf lockfile

answered Jul 24 '20 at 07:16

Ankur Lahiry

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score 0 · Answer 4 · answered Feb 19 '19 at 12:01

0

You can solve this problem by deleting flutter/bin/cache/lockfile it worked for me in a similar case .You can find full explanation of this issue is in this closed github issue .

answered Feb 19 '19 at 12:01

Mazin Ibrahim

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I deleted it from the folder that you indicated but it generates it again. https://i.gyazo.com/2f3edb3032ce6383aa3b7eeba2cbe2df.gif?_ga=2.14777397.2089147605.1550578772-1008970440.1550578772 – DomingoMG Feb 19 '19 at 12:22

score 0 · Answer 5 · answered Jun 03 '20 at 09:54

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I edited my all griddle files and run my app and it worked for me. Here edit means just delete a character and write it again. I don't know why it worked but it actually worked for me.

answered Jun 03 '20 at 09:54

Nazmul81

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score -1 · Answer 6 · edited May 29 '20 at 20:48

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flutter packages pub build_runner watch

macos terminal

which fluter

rm -rf  /usr/local/bin/flutter/bin/cache/lockfile

edited May 29 '20 at 20:48

Boken

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answered Jul 12 '19 at 05:09

Cgruppo Gau

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Flutter: Waiting for another flutter commando to release the startup lock

6 Answers6