Valet: Upgraded PHP 7.4 - Error (The process has been signaled with signal 6 / 9.

[bmadigan]

It doesn't appear that Valet is running at all for me any longer I get:
_Unable to Connect_ on Firefox and
_This site can't be reached_ on Chrome

I upgraded PHP via brew update and then ran brew upgrade php

Valet on-lastest version: Yes
PHP -v: 7.4.0
Which PHP: /usr/local/bin/php

I also ran composer global upgrade and valet install.

Trying to run Brew Services List and Valet use PHP gives the following:

NOTE: I also tried valet uninstall --force but I get the error (Screenshot)

[drbyte]

It's probably good to leave this issue titled with the The process has been signaled with signal "6" text, since that appears to be the primary issue. (well, 6 or 9 anyway)

What's the output of:

composer global outdated
cat ~/.composer/composer.json
echo $PATH

I'm wondering specifically here what other dependencies are installed, which could be causing Process to behave unexpectedly (and what older version might be installed, etc).

Also, maybe run the following just to be sure the old PHP is shut down and not restarting on boot:
brew services stop [email protected]

[drbyte]

According to various sources (one of which is https://en.wikipedia.org/wiki/Signal_(IPC) )
Signal 6 is Abort, and Signal 9 is Kill

Symfony/Process is being used to run commands.
In your case it seems to be failing when running commands related to installing/removing/configuring PHP.
I wonder what Homebrew is saying behind-the-scenes.

What's the output of the following? I'm curious whether any errors occur, especially with verbose output.
brew services stop php -vvv
and
brew services start php -vvv

Also, for diagnostics, let's also try uninstalling all your PHP versions, since the valet uninstall --force will loop through all and attempt to uninstall them, and you're getting the error in that case as well as just with a restart.

brew uninstall --force [email protected] -vvv
brew uninstall --force [email protected] -vvv
brew uninstall --force php -vvv
brew install php -vvv

[bmadigan]

@drbyte - Great ideas. I'll go through the last comment and I'll update

[bmadigan]

I have it working now. There was so much output that it would really be too much to add here. I pretty much did what you suggested ie:

brew uninstall --force [email protected] -vvv
brew uninstall --force [email protected] -vvv
brew uninstall --force php -vvv
brew install php -vvv

But I was still getting the same issue, and by accident actually I typed:
brew upgrade (I mean update) and it upgraded a bunch of services.

I then reran valet install for sh*ts and giggles and it is now working 🤷‍♂

Thank you for your comments. It was a big help.

[drbyte]

Woot! Glad it's working.

I upgraded PHP via brew update and then ran brew upgrade php

Perhaps in hindsight simply running brew update and brew upgrade (not limiting it to just php) might have been enough.

I usually run brew update && brew upgrade on a weekly basis.
brew cleanup is handy too.

[JackEllis]

I also ran into this with Laravel Valet where I hit The process has been signaled with signal "6". As per the rules, if it takes you longer than 20 minutes to solve, post about it. I did the following to get it working.

This is a dump of my terminal history. I fixed this yesterday and have no idea what did it, but throw everything at it and you'll get things working.

1. valet uninstall
2. composer global remove laravel/valet
3. brew uninstall --force php nginx dnsmasq
4. composer global require laravel/valet
5. valet install
6. composer global update
7. brew upgrade php
8. brew switch icu4c 64.2
9. valet reinstall
10. brew services php start
11. brew services restart nginx
12. brew unlink php
13. brew cleanup
14. brew link php

[mbroadley]

I have it working now. There was so much output that it would really be too much to add here. I pretty much did what you suggested ie:

brew uninstall --force [email protected] -vvv
brew uninstall --force [email protected] -vvv
brew uninstall --force php -vvv
brew install php -vvv

But I was still getting the same issue, and by accident actually I typed:
brew upgrade (I mean update) and it upgraded a bunch of services.

I then reran valet install for sh*ts and giggles and it is now working 🤷‍♂

Thank you for your comments. It was a big help.

Was experiencing the same issue and read this thread, tried a few things that didn't work.

The "brew upgrade" and "valet install" fixed it all for me too :)

[acirinelli]

The "brew upgrade" and "valet install" fixed it all for me too :)

Same. Nothing else worked to remove the error, but generally helpful in cleaning up.

[richartkeil]

For me the fix was the specific upgrade from nginx 1.15.9 to 1.17.8 by brew upgrade nginx. Works like a charm now.

[warksit]

For me the fix was the specific upgrade from nginx 1.15.9 to 1.17.8 by brew upgrade nginx. Works like a charm now.

Brew listed nginx as version 1.17.8 but uninstalling it and reinstalling nginx is what fixed it for me. Thanks for the pointer @richartkeil

[foxnorth]

Got this error.
I was trying to fetch data from DB before I applied migrations to create a table for that model.
I was trying to fetch it inside a route (it was a lesson).

Route::get('/projects', function() {
    $projects = App\Project::all();
    return view('projects.index', compact('projects'));
});

And "Signal 9" was uninformative.

[seivad]

I ran the following to successfully resolve Signal 6 issue:

composer global update
brew update && brew upgrade 
valet restart

During that restart, I got the firewall allow prompt in OSX, hit allow and valet restarted successfully. Sites loading now. Weird bug.

[turanzamanli]

I tried all the comments. But it just fuckup.

Finally, I add comment to /Users/username/.composer/vendor/symfony/process/Process.php 428. line

[jesseleite]

brew upgrade nginx fixed it for me as well

[zamson]

brew upgrade nginx followed by valet install worked for me

[shayanazali]

I got signal 6 error when I upgraded to php 7.3 but when I tried to backup my database I get the following error:

dyld: Library not loaded: /usr/local/opt/openssl/lib/libssl.1.0.0.dylib

so i switched the version of openssl by running:
brew switch openssl 1.0.2q

and then my mysql started to work correctly, then I try valet install again and things started to work again

[usamamuneerchaudhary]

For me the fix was the specific upgrade from nginx 1.15.9 to 1.17.8 by brew upgrade nginx. Works like a charm now.

this worked for me !

[anasred]

I did
brew cleanup

then I got this:

Error: Could not remove [email protected] keg! Do so manually:
  sudo rm -rf /usr/local/Cellar/[email protected]/7.3.13

then I did:
sudo rm -rf /usr/local/Cellar/[email protected]/7.3.13

then I did:
php -v
So I got this:
PHP 7.3.11 (cli) (built: Jul 5 2020 03:23:39) ( NTS )

so finally I did:
valet use [email protected]

And voila! Valet back to business again 😎🙌
Thanks guys for sharing

[thesunilbagde]

For me the fix was the specific upgrade from nginx 1.15.9 to 1.17.8 by brew upgrade nginx. Works like a charm now.

How you know? but its work awesome!

[sakinobashi]

I was having a similar issue; my project was being served correctly most of the time, but on certain requests I was getting a "The process has been signaled with signal 9" Symphony error rather than the regular Ignition error pages.

The following commands:

composer global update brew update && brew upgrade valet install

… worked for me as well, so everyone's comments were much appreciated!

[thesunilbagde]

I was having a similar issue; my project was being served correctly most of the time, but on certain requests I was getting a "The process has been signaled with signal 9" Symphony error rather than the regular Ignition error pages.

The following commands:

composer global update
brew update && brew upgrade 
valet install

… worked for me as well, so everyone's comments were much appreciated!

brew upgrade nginx
Worked for me

[SidneyMachara]

brew upgrade nginx

it might tell you :
Error: Could not remove nginx keg! Do so manually:
sudo rm -rf /usr/local/Cellar/nginx/1.15.8

so do --> sudo rm -rf /usr/local/Cellar/nginx/1.15.8

brew update && brew upgrade

it might tell you :
Error: Could not remove dnsmasq keg! Do so manually:
sudo rm -rf /usr/local/Cellar/dnsmasq/2.80

do go ahead and do --> sudo rm -rf /usr/local/Cellar/dnsmasq/2.80

valet restart

[drexelapplab]

I have it working now. There was so much output that it would really be too much to add here. I pretty much did what you suggested ie:

brew uninstall --force [email protected] -vvv
brew uninstall --force [email protected] -vvv
brew uninstall --force php -vvv
brew install php -vvv

But I was still getting the same issue, and by accident actually I typed:
brew upgrade (I mean update) and it upgraded a bunch of services.

I then reran valet install for sh*ts and giggles and it is now working 🤷‍♂

Thank you for your comments. It was a big help.

I did these exact steps and it resolved my issue. This issue started for me after updating the laravel/installer package via composer.

Great work!