diff --git a/rector.php b/rector.php
index cb3e8c8d..8f3ed734 100644
--- a/rector.php
+++ b/rector.php
@@ -16,6 +16,7 @@
         '*/Fixture/*',
         StringClassNameToClassConstantRector::class => [
             __DIR__ . '/src/Enum',
+            __DIR__ . '/src/Rules/Enum',
             __DIR__ . '/src/Testing/PHPUnitTestAnalyser.php',
             __DIR__ . '/src/Rules/NoEntityOutsideEntityNamespaceRule.php',
             __DIR__ . '/src/Rules/Symfony/CommandMustHaveAsCommandAttributeRule.php',
diff --git a/src/Rules/Symfony/CommandMustHaveAsCommandAttributeRule.php b/src/Rules/Symfony/CommandMustHaveAsCommandAttributeRule.php
index 45c48efe..672c9501 100644
--- a/src/Rules/Symfony/CommandMustHaveAsCommandAttributeRule.php
+++ b/src/Rules/Symfony/CommandMustHaveAsCommandAttributeRule.php
@@ -61,6 +61,11 @@ public function processNode(Node $node, Scope $scope): array
             return [];
         }
 
+        // do not require an attribute the project does not even have
+        if (! $this->reflectionProvider->hasClass(SymfonyAttribute::AS_COMMAND)) {
+            return [];
+        }
+
         foreach ($node->attrGroups as $attrGroup) {
             foreach ($attrGroup->attrs as $attr) {
                 if ($attr->name->toString() === SymfonyAttribute::AS_COMMAND) {
diff --git a/src/Rules/Symfony/ConstraintMustHaveAttributeRule.php b/src/Rules/Symfony/ConstraintMustHaveAttributeRule.php
index 8a5b2133..4a840d2e 100644
--- a/src/Rules/Symfony/ConstraintMustHaveAttributeRule.php
+++ b/src/Rules/Symfony/ConstraintMustHaveAttributeRule.php
@@ -55,6 +55,11 @@ public function processNode(Node $node, Scope $scope): array
             return [];
         }
 
+        // do not require an attribute when the validator component is not even installed
+        if (! $this->reflectionProvider->hasClass(SymfonyAttribute::CONSTRAINT)) {
+            return [];
+        }
+
         $className = (string) $node->namespacedName;
         if (! $this->reflectionProvider->hasClass($className)) {
             return [];