Routing error in Laravel resulting in: Call to undefined method ReflectionUnionType::getName()

✔ Recommended Answer

The URI segment name should be the same to the argument of controller method. In route URI, you use commentableId but in controller method, you use $commentableModel. So try changing the name of argument to $commentableId:

public function index(IndexCommentRequest $request, String $commentableType, Product | Post $commentableId): JsonResponse{    $comments = $request->perform($commentableType, $commentableModel);    return $this->successWithPayload(new CommentResource($comments));}

If it doesn't work neither, try removing strict type Product | Post:

  public function index(IndexCommentRequest $request, String $commentableType, $commentableId): JsonResponse    {        $comments = $request->perform($commentableType, $commentableModel);            return $this->successWithPayload(new CommentResource($comments));    }


Answered By: Khang Tran

Method #2

The error message "Call to undefined method ReflectionUnionType::getName()" usually occurs when you're trying to call the getName() method on a ReflectionUnionType object in Laravel, which doesn't exist. This can happen if you're using an older version of PHP that doesn't support union types.

Union types were introduced in PHP 8.0, so if you're using a version of PHP older than that, you won't be able to use union types. To check your PHP version, you can run the following command in your terminal:

php -v

If you're using an older version of PHP, you can either upgrade to PHP 8.0 or later or avoid using union types in your code.

If you're already using PHP 8.0 or later and still getting this error, it's possible that there's a bug in your Laravel code. You can try updating Laravel to the latest version or checking your code for any syntax errors or other issues.

Also, make sure that your Laravel installation is set up correctly, including your routes. If your routes aren't set up correctly, you may get this error message. Double-check your routes file to make sure that all of the routes are defined correctly.

If you're still having trouble, you can try posting your code and error message on a forum or community where other Laravel developers can help you troubleshoot the issue.


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