diff -r 000000000000 -r 7f95f8617b0b vendor/symfony/src/Symfony/Component/DependencyInjection/Exception/ParameterNotFoundException.php
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/vendor/symfony/src/Symfony/Component/DependencyInjection/Exception/ParameterNotFoundException.php	Sat Sep 24 15:40:41 2011 +0200
@@ -0,0 +1,80 @@
+<?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\DependencyInjection\Exception;
+
+/**
+ * This exception is thrown when a non-existent parameter is used.
+ *
+ * @author Fabien Potencier <fabien@symfony.com>
+ */
+class ParameterNotFoundException extends InvalidArgumentException
+{
+    private $key;
+    private $sourceId;
+    private $sourceKey;
+
+    /**
+     * Constructor.
+     *
+     * @param string $key       The requested parameter key
+     * @param string $sourceId  The service id that references the non-existent parameter
+     * @param string $sourceKey The parameter key that references the non-existent parameter
+     */
+    public function __construct($key, $sourceId = null, $sourceKey = null)
+    {
+        $this->key = $key;
+        $this->sourceId = $sourceId;
+        $this->sourceKey = $sourceKey;
+
+        $this->updateRepr();
+    }
+
+    public function updateRepr()
+    {
+        if (null !== $this->sourceId) {
+            $this->message = sprintf('The service "%s" has a dependency on a non-existent parameter "%s".', $this->sourceId, $this->key);
+        } elseif (null !== $this->sourceKey) {
+            $this->message = sprintf('The parameter "%s" has a dependency on a non-existent parameter "%s".', $this->sourceKey, $this->key);
+        } else {
+            $this->message = sprintf('You have requested a non-existent parameter "%s".', $this->key);
+        }
+    }
+
+    public function getKey()
+    {
+        return $this->key;
+    }
+
+    public function getSourceId()
+    {
+        return $this->sourceId;
+    }
+
+    public function getSourceKey()
+    {
+        return $this->sourceKey;
+    }
+
+    public function setSourceId($sourceId)
+    {
+        $this->sourceId = $sourceId;
+
+        $this->updateRepr();
+    }
+
+    public function setSourceKey($sourceKey)
+    {
+        $this->sourceKey = $sourceKey;
+
+        $this->updateRepr();
+    }
+}