yiisoft / validator

src/HasValidationErrorMessage.php

<?php

declare(strict_types=1);

namespace Yiisoft\Validator;

trait HasValidationErrorMessage
{
    public function message(string $message): self
    {
        $new = clone $this;
        $new->message = $message;

The property message does not exist. Although not strictly required by PHP, it is generally a best practice to declare properties explicitly.

        return $new;
    }
}