add check symfony/cache is installed and improve doc

Author: Damienbelingheri

docs/annotations/index.md

@@ -2,7 +2,9 @@
 
 In order to use annotations or attributes, you need to configure the mapping:
 
-To use annotations, use the `annotation` mapping type.
+To use annotations, You must install `symfony/cache` and `doctrine/annotation` and use the `annotation` mapping type.
+
+
 ```yaml
 # config/packages/graphql.yaml
 overblog_graphql:
@@ -13,7 +15,7 @@ overblog_graphql:
           dir: "%kernel.project_dir%/src/GraphQL"
           suffix: ~
 ```
-
+To use annoation, you must instal   '  '' ' and use the annatotton mapping type
 To use attributes, use the `attribute` mapping type.
 
 ```yaml

src/Config/Parser/AnnotationParser.php

@@ -44,6 +44,12 @@ protected static function getAnnotationReader(): Reader
                 throw new RuntimeException("In order to use annotations, you need to install 'doctrine/annotations' first. See: 'https://www.doctrine-project.org/projects/annotations.html'");
                 // @codeCoverageIgnoreEnd
             }
+            if (!class_exists(ApcuAdapter::class)) {
+                // @codeCoverageIgnoreStart
+                throw new RuntimeException("In order to use annotations, you need to install 'symfony/cache' first. See: 'https://symfony.com/doc/current/components/cache.html'");
+                // @codeCoverageIgnoreEnd
+            }
+
 
             if (class_exists(AnnotationRegistry::class)) {
                 AnnotationRegistry::registerLoader('class_exists');