autoformat with CS Fixer exited with non-zero code

I’m trying to set up PHP Coding Standards Fixer with PhpStorm but when I run the code auto formatter (Ctrl Alt L) I get an error:

PHP External Formatter: Process exited with non-zero code

Clicking the notification doesn’t expands any info and I don’t know where to get this output or code.

I had set PHP CS Fixer as the external formatter in “Quality tools”, activated the inspection in “Quality tools > PHP CS Fixer” and the validate for “PHP CS Fixer path” does not show any issues.

I have also setted “Run built-in formatter before external formatter” in Advanced settings.

I have my .php-cs-fixer.dist.php not in the root of my project but in a symfony folder (so path is symfony/.php-cs-fixer.dist.php). Could this be the issue? How can I set this path if it is the case?

How can I fix this error? I would prefer not to ignore it…