From fef0de3eb63c783cdde789901e8ca5d27134c75c Mon Sep 17 00:00:00 2001
From: Jules Pietri <heah@heahprod.com>
Date: Thu, 20 Feb 2020 20:50:53 +0100
Subject: [PATCH] [HttpFoundation] Fixed Mimes dependency missing error

---
 UPGRADE-5.1.md                                     | 1 +
 src/Symfony/Component/HttpFoundation/File/File.php | 4 ++++
 2 files changed, 5 insertions(+)

diff --git a/UPGRADE-5.1.md b/UPGRADE-5.1.md
index 1fa3c6cf45c4..656f0b5d5dda 100644
--- a/UPGRADE-5.1.md
+++ b/UPGRADE-5.1.md
@@ -36,6 +36,7 @@ HttpFoundation
  * Deprecate `Response::create()`, `JsonResponse::create()`,
    `RedirectResponse::create()`, and `StreamedResponse::create()` methods (use
    `__construct()` instead)
+ * Made the Mime component an optional dependency
 
 Messenger
 ---------
diff --git a/src/Symfony/Component/HttpFoundation/File/File.php b/src/Symfony/Component/HttpFoundation/File/File.php
index 45f344e37531..e4df5f4df025 100644
--- a/src/Symfony/Component/HttpFoundation/File/File.php
+++ b/src/Symfony/Component/HttpFoundation/File/File.php
@@ -74,6 +74,10 @@ public function guessExtension()
      */
     public function getMimeType()
     {
+        if (!class_exists(MimeTypes::class)) {
+            throw new \LogicException('You cannot guess the mime type as the Mime component is not installed. Try running "composer require symfony/mime".');
+        }
+
         return MimeTypes::getDefault()->guessMimeType($this->getPathname());
     }