diff --git a/src/Symfony/Component/Console/Application.php b/src/Symfony/Component/Console/Application.php
index c576ec050aa6b..320d53919ebb3 100644
--- a/src/Symfony/Component/Console/Application.php
+++ b/src/Symfony/Component/Console/Application.php
@@ -490,6 +490,11 @@ public function get($name)
throw new CommandNotFoundException(sprintf('The command "%s" does not exist.', $name));
}
+ // When the command has a different name than the one used at the command loader level
+ if (!isset($this->commands[$name])) {
+ throw new CommandNotFoundException(sprintf('The "%s" command cannot be found because it is registered under multiple names. Make sure you don\'t set a different name via constructor or "setName()".', $name));
+ }
+
$command = $this->commands[$name];
if ($this->wantHelps) {
diff --git a/src/Symfony/Component/Console/Tests/ApplicationTest.php b/src/Symfony/Component/Console/Tests/ApplicationTest.php
index f813083985f36..212379a7c39db 100644
--- a/src/Symfony/Component/Console/Tests/ApplicationTest.php
+++ b/src/Symfony/Component/Console/Tests/ApplicationTest.php
@@ -1715,6 +1715,20 @@ public function testErrorIsRethrownIfNotHandledByConsoleErrorEventWithCatchingEn
$this->assertSame('Something went wrong.', $e->getMessage());
}
}
+
+ public function testCommandNameMismatchWithCommandLoaderKeyThrows()
+ {
+ $this->expectException(CommandNotFoundException::class);
+ $this->expectExceptionMessage('The "test" command cannot be found because it is registered under multiple names. Make sure you don\'t set a different name via constructor or "setName()".');
+
+ $app = new Application();
+ $loader = new FactoryCommandLoader([
+ 'test' => static function () { return new Command('test-command'); },
+ ]);
+
+ $app->setCommandLoader($loader);
+ $app->get('test');
+ }
}
class CustomApplication extends Application
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