Actualización

vendor/symfony/config/Util/Exception/InvalidXmlException.php

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+<?php
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Util\Exception;
+
+/**
+ * Exception class for when XML parsing with an XSD schema file path or a callable validator produces errors unrelated
+ * to the actual XML parsing.
+ *
+ * @author Ole Rößner <ole@roessner.it>
+ */
+class InvalidXmlException extends XmlParsingException
+{
+}

vendor/symfony/config/Util/Exception/XmlParsingException.php

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+<?php
+
+/*
+ * This file is part of the Symfony package.
+ *
+ * (c) Fabien Potencier <fabien@symfony.com>
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace Symfony\Component\Config\Util\Exception;
+
+/**
+ * Exception class for when XML cannot be parsed properly.
+ *
+ * @author Ole Rößner <ole@roessner.it>
+ */
+class XmlParsingException extends \InvalidArgumentException
+{
+}