diff --git a/src/Symfony/Bridge/Doctrine/ArgumentResolver/EntityValueResolver.php b/src/Symfony/Bridge/Doctrine/ArgumentResolver/EntityValueResolver.php
index ffff3006f7184..1efa7d78d0524 100644
--- a/src/Symfony/Bridge/Doctrine/ArgumentResolver/EntityValueResolver.php
+++ b/src/Symfony/Bridge/Doctrine/ArgumentResolver/EntityValueResolver.php
@@ -21,6 +21,7 @@
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpKernel\Controller\ValueResolverInterface;
 use Symfony\Component\HttpKernel\ControllerMetadata\ArgumentMetadata;
+use Symfony\Component\HttpKernel\Exception\NearMissValueResolverException;
 use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
 
 /**
@@ -68,7 +69,11 @@ public function resolve(Request $request, ArgumentMetadata $argument): array
         } elseif (false === $object = $this->find($manager, $request, $options, $argument)) {
             // find by criteria
             if (!$criteria = $this->getCriteria($request, $options, $manager, $argument)) {
-                return [];
+                if (!class_exists(NearMissValueResolverException::class)) {
+                    return [];
+                }
+
+                throw new NearMissValueResolverException(sprintf('Cannot find mapping for "%s": declare one using either the #[MapEntity] attribute or mapped route parameters.', $options->class));
             }
             try {
                 $object = $manager->getRepository($options->class)->findOneBy($criteria);
@@ -185,7 +190,7 @@ private function getCriteria(Request $request, MapEntity $options, ObjectManager
 
             return $criteria;
         } elseif (null === $mapping) {
-            trigger_deprecation('symfony/doctrine-bridge', '7.1', 'Relying on auto-mapping for Doctrine entities is deprecated for argument $%s of "%s": declare the identifier using either the #[MapEntity] attribute or mapped route parameters.', $argument->getName(), method_exists($argument, 'getControllerName') ? $argument->getControllerName() : 'n/a');
+            trigger_deprecation('symfony/doctrine-bridge', '7.1', 'Relying on auto-mapping for Doctrine entities is deprecated for argument $%s of "%s": declare the mapping using either the #[MapEntity] attribute or mapped route parameters.', $argument->getName(), method_exists($argument, 'getControllerName') ? $argument->getControllerName() : 'n/a');
             $mapping = $request->attributes->keys();
         }
 
diff --git a/src/Symfony/Bridge/Doctrine/CHANGELOG.md b/src/Symfony/Bridge/Doctrine/CHANGELOG.md
index fbd1055437d8f..3c660900e335f 100644
--- a/src/Symfony/Bridge/Doctrine/CHANGELOG.md
+++ b/src/Symfony/Bridge/Doctrine/CHANGELOG.md
@@ -7,6 +7,7 @@ CHANGELOG
  * Reset the manager registry using native lazy objects when applicable
  * Deprecate the `DoctrineExtractor::getTypes()` method, use `DoctrineExtractor::getType()` instead
  * Add support for `Symfony\Component\Clock\DatePoint` as `DatePointType` Doctrine type
+ * Improve exception message when `EntityValueResolver` gets no mapping information
 
 7.2
 ---
diff --git a/src/Symfony/Bridge/Doctrine/Tests/ArgumentResolver/EntityValueResolverTest.php b/src/Symfony/Bridge/Doctrine/Tests/ArgumentResolver/EntityValueResolverTest.php
index 91ec5e89b99d3..8207317803857 100644
--- a/src/Symfony/Bridge/Doctrine/Tests/ArgumentResolver/EntityValueResolverTest.php
+++ b/src/Symfony/Bridge/Doctrine/Tests/ArgumentResolver/EntityValueResolverTest.php
@@ -24,6 +24,7 @@
 use Symfony\Component\ExpressionLanguage\SyntaxError;
 use Symfony\Component\HttpFoundation\Request;
 use Symfony\Component\HttpKernel\ControllerMetadata\ArgumentMetadata;
+use Symfony\Component\HttpKernel\Exception\NearMissValueResolverException;
 use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;
 
 class EntityValueResolverTest extends TestCase
@@ -75,6 +76,11 @@ public function testResolveWithNoIdAndDataOptional()
         $request = new Request();
         $argument = $this->createArgument(null, new MapEntity(), 'arg', true);
 
+        if (class_exists(NearMissValueResolverException::class)) {
+            $this->expectException(NearMissValueResolverException::class);
+            $this->expectExceptionMessage('Cannot find mapping for "stdClass": declare one using either the #[MapEntity] attribute or mapped route parameters.');
+        }
+
         $this->assertSame([], $resolver->resolve($request, $argument));
     }
 
@@ -94,6 +100,11 @@ public function testResolveWithStripNulls()
         $manager->expects($this->never())
             ->method('getRepository');
 
+        if (class_exists(NearMissValueResolverException::class)) {
+            $this->expectException(NearMissValueResolverException::class);
+            $this->expectExceptionMessage('Cannot find mapping for "stdClass": declare one using either the #[MapEntity] attribute or mapped route parameters.');
+        }
+
         $this->assertSame([], $resolver->resolve($request, $argument));
     }
 
@@ -262,6 +273,11 @@ public function testResolveGuessOptional()
 
         $manager->expects($this->never())->method('getRepository');
 
+        if (class_exists(NearMissValueResolverException::class)) {
+            $this->expectException(NearMissValueResolverException::class);
+            $this->expectExceptionMessage('Cannot find mapping for "stdClass": declare one using either the #[MapEntity] attribute or mapped route parameters.');
+        }
+
         $this->assertSame([], $resolver->resolve($request, $argument));
     }