phpcs: ERROR: Referenced sniff "SlevomatCodingStandard.Arrays.TrailingArrayComma" does not exist

[progredi]

Started receiving this error message in PhpStorm 2020.1 yesterday, after installing PHPStan. Pops up after every file save.

[gsherwood]

Is this an error you can reproduce from the command line?

I ask because I don't maintain a PHPStorm plugin, or the Slevomat coding standard, or PHPStan, so I don't know how to even begin replicating this issue.

[devcorrelator]

I recently did a composer update and now I'm getting this error:

ERROR: Referenced sniff "SlevomatCodingStandard.Arrays.TrailingArrayComma" does not exist

Versions: phpstan/phpstan: 0.12.29 squizlabs/php_codesniffer: 3.5.5 cakephp/cakephp-codesniffer: 4.2.0 slevomat/coding-standard: 6.3.9

[jrfnl]

@devcorrelator While similar, your issue is not necessarily the same as the one discussed here.

You needs to make sure that the CakePHP and the Slevomat standards are registered with PHPCS via the installed_paths.

Run vendor/bin/phpcs -i to see which standards are installed. If either of them are missing, that's your problem. This is how you set the installed_paths: https://github.com/squizlabs/PHP_CodeSniffer/wiki/Configuration-Options#setting-the-installed-standard-paths

Alternatively, as you're using Composer anyway, you can use the following Composer plugin to register the installed_paths automatically for you: https://packagist.org/packages/dealerdirect/phpcodesniffer-composer-installer

[devcorrelator]

@jrfnl Thank you so much! it set me on the path to fix it. I tried that package, but it was throwing an issue where that class can't be autoladed. I ended up following the directions in the link that you sent me, and updated my phpcs.xml file.

For future reference to anyone googling in the future: I'm running php in composer link so:

"scripts": {
        "fix": [
            "@cs-fix",
            "@cs-check"
        ],
        "cs-check": "vendor/bin/phpcs --colors -p -s --extensions=ctp,php ./src ./tests ./config",
        "cs-fix": "vendor/bin/phpcbf --colors --extensions=ctp,php ./src ./tests ./config"
    }

and composer fix

Here is my phpcs.xml. This is where I had to list the other standards:

<?xml version="1.0"?>
<ruleset name="App">
    <description>App Coding Standard</description>
    <config name="installed_paths" value="../../cakephp/cakephp-codesniffer"/>
    <config name="installed_paths" value="../../slevomat/coding-standard"/>

    <!-- Allow TODO tags -->
    <rule ref="Generic.Commenting.Todo.CommentFound">
        <severity>0</severity>
    </rule>
    <rule ref="Generic.Commenting.Todo.TaskFound">
        <severity>0</severity>
    </rule>
</ruleset>

[motooka]

FYI, on my environment (PhpStorm, docker-compose on Mac and CakePHP ), I have also suffered from the pop-ups described in this thread. The Reset PHP_CodeSniffer configuration guide in PhpStorm help page did the trick for me. https://www.jetbrains.com/help/phpstorm/using-php-code-sniffer.html#reset-tool-configuration

[earthiverse]

I had this error in one of the projects I was working on. It used an older version of Composer (1.1) in its Dockerfile. Upgrading Composer (I went to 2.7) fixed the issue.