Unable to encode data to JSON

Airy-_-

When I was performing the registration operation, a BUG appeared, why this error occurred
The following is the debugging content

POST http://flarum.test/register

Laminas\Diactoros\Exception\InvalidArgumentException: Unable to encode data to JSON in Laminas\Diactoros\Response\JsonResponse: Malformed UTF-8 characters, possibly incorrectly encoded in file F:\Demo\flarum\vendor\laminas\laminas-diactoros\src\Response\JsonResponse.php on line 144
Stack trace:
  1. Laminas\Diactoros\Exception\InvalidArgumentException->() F:\Demo\flarum\vendor\laminas\laminas-diactoros\src\Response\JsonResponse.php:144
  2. Laminas\Diactoros\Response\JsonResponse->jsonEncode() F:\Demo\flarum\vendor\laminas\laminas-diactoros\src\Response\JsonResponse.php:79
  3. Laminas\Diactoros\Response\JsonResponse->__construct() F:\Demo\flarum\vendor\flarum\core\src\Api\JsonApiResponse.php:27
  4. Flarum\Api\JsonApiResponse->__construct() F:\Demo\flarum\vendor\flarum\core\src\Foundation\ErrorHandling\JsonApiFormatter.php:41
  5. Flarum\Foundation\ErrorHandling\JsonApiFormatter->format() F:\Demo\flarum\vendor\flarum\core\src\Http\Middleware\HandleErrors.php:67
  6. Flarum\Http\Middleware\HandleErrors->process() F:\Demo\flarum\vendor\laminas\laminas-stratigility\src\Next.php:51
  7. Laminas\Stratigility\Next->handle() F:\Demo\flarum\vendor\laminas\laminas-stratigility\src\MiddlewarePipe.php:76
  8. Laminas\Stratigility\MiddlewarePipe->process() F:\Demo\flarum\vendor\laminas\laminas-stratigility\src\MiddlewarePipe.php:65
  9. Laminas\Stratigility\MiddlewarePipe->handle() F:\Demo\flarum\vendor\flarum\core\src\Api\Client.php:144
 10. Flarum\Api\Client->send() F:\Demo\flarum\vendor\flarum\core\src\Api\Client.php:100
 11. Flarum\Api\Client->post() F:\Demo\flarum\vendor\flarum\core\src\Forum\Controller\RegisterController.php:56
 12. Flarum\Forum\Controller\RegisterController->handle() F:\Demo\flarum\vendor\flarum\core\src\Http\RouteHandlerFactory.php:41
 13. Flarum\Http\RouteHandlerFactory->Flarum\Http\{closure}() F:\Demo\flarum\vendor\flarum\core\src\Http\Middleware\ExecuteRoute.php:27
 14. Flarum\Http\Middleware\ExecuteRoute->process() F:\Demo\flarum\vendor\laminas\laminas-stratigility\src\Next.php:51
 15. Laminas\Stratigility\Next->handle() F:\Demo\flarum\vendor\flarum\core\src\Http\Middleware\ContentTypeOptionsHeader.php:21
 16. Flarum\Http\Middleware\ContentTypeOptionsHeader->process() F:\Demo\flarum\vendor\laminas\laminas-stratigility\src\Next.php:51
 17. Laminas\Stratigility\Next->handle() F:\Demo\flarum\vendor\flarum\core\src\Http\Middleware\ReferrerPolicyHeader.php:30
 18. Flarum\Http\Middleware\ReferrerPolicyHeader->process() F:\Demo\flarum\vendor\laminas\laminas-stratigility\src\Next.php:51
 19. Laminas\Stratigility\Next->handle() F:\Demo\flarum\vendor\flarum\core\src\Http\Middleware\FlarumPromotionHeader.php:30
 20. Flarum\Http\Middleware\FlarumPromotionHeader->process() F:\Demo\flarum\vendor\laminas\laminas-stratigility\src\Next.php:51
 21. Laminas\Stratigility\Next->handle() F:\Demo\flarum\vendor\flarum\core\src\Http\Middleware\ShareErrorsFromSession.php:57
 22. Flarum\Http\Middleware\ShareErrorsFromSession->process() F:\Demo\flarum\vendor\laminas\laminas-stratigility\src\Next.php:51
 23. Laminas\Stratigility\Next->handle() F:\Demo\flarum\vendor\flarum\core\src\Http\Middleware\CheckCsrfToken.php:44
 24. Flarum\Http\Middleware\CheckCsrfToken->process() F:\Demo\flarum\vendor\laminas\laminas-stratigility\src\Next.php:51
 25. Laminas\Stratigility\Next->handle() F:\Demo\flarum\vendor\flarum\core\src\Http\Middleware\ResolveRoute.php:67
 26. Flarum\Http\Middleware\ResolveRoute->process() F:\Demo\flarum\vendor\laminas\laminas-stratigility\src\Next.php:51
 27. Laminas\Stratigility\Next->handle() F:\Demo\flarum\vendor\flarum\core\src\Http\Middleware\SetLocale.php:51
 28. Flarum\Http\Middleware\SetLocale->process() F:\Demo\flarum\vendor\laminas\laminas-stratigility\src\Next.php:51
 29. Laminas\Stratigility\Next->handle() F:\Demo\flarum\vendor\flarum\core\src\Http\Middleware\AuthenticateWithSession.php:31
 30. Flarum\Http\Middleware\AuthenticateWithSession->process() F:\Demo\flarum\vendor\laminas\laminas-stratigility\src\Next.php:51
 31. Laminas\Stratigility\Next->handle() F:\Demo\flarum\vendor\flarum\core\src\Http\Middleware\RememberFromCookie.php:52
 32. Flarum\Http\Middleware\RememberFromCookie->process() F:\Demo\flarum\vendor\laminas\laminas-stratigility\src\Next.php:51
 33. Laminas\Stratigility\Next->handle() F:\Demo\flarum\vendor\flarum\core\src\Http\Middleware\StartSession.php:61
 34. Flarum\Http\Middleware\StartSession->process() F:\Demo\flarum\vendor\laminas\laminas-stratigility\src\Next.php:51
 35. Laminas\Stratigility\Next->handle() F:\Demo\flarum\vendor\flarum\core\src\Http\Middleware\CollectGarbage.php:46
 36. Flarum\Http\Middleware\CollectGarbage->process() F:\Demo\flarum\vendor\laminas\laminas-stratigility\src\Next.php:51
 37. Laminas\Stratigility\Next->handle() F:\Demo\flarum\vendor\flarum\core\src\Http\Middleware\ParseJsonBody.php:28
 38. Flarum\Http\Middleware\ParseJsonBody->process() F:\Demo\flarum\vendor\laminas\laminas-stratigility\src\Next.php:51
 39. Laminas\Stratigility\Next->handle() F:\Demo\flarum\vendor\flarum\core\src\Http\Middleware\HandleErrors.php:57
 40. Flarum\Http\Middleware\HandleErrors->process() F:\Demo\flarum\vendor\laminas\laminas-stratigility\src\Next.php:51
 41. Laminas\Stratigility\Next->handle() F:\Demo\flarum\vendor\flarum\core\src\Http\Middleware\InjectActorReference.php:25
 42. Flarum\Http\Middleware\InjectActorReference->process() F:\Demo\flarum\vendor\laminas\laminas-stratigility\src\Next.php:51
 43. Laminas\Stratigility\Next->handle() F:\Demo\flarum\vendor\laminas\laminas-stratigility\src\MiddlewarePipe.php:76
 44. Laminas\Stratigility\MiddlewarePipe->process() F:\Demo\flarum\vendor\middlewares\request-handler\src\RequestHandler.php:84
 45. Middlewares\RequestHandler->process() F:\Demo\flarum\vendor\laminas\laminas-stratigility\src\Next.php:51
 46. Laminas\Stratigility\Next->handle() F:\Demo\flarum\vendor\middlewares\base-path-router\src\BasePathRouter.php:101
 47. Middlewares\BasePathRouter->process() F:\Demo\flarum\vendor\laminas\laminas-stratigility\src\Next.php:51
 48. Laminas\Stratigility\Next->handle() F:\Demo\flarum\vendor\laminas\laminas-stratigility\src\Middleware\OriginalMessages.php:36
 49. Laminas\Stratigility\Middleware\OriginalMessages->process() F:\Demo\flarum\vendor\laminas\laminas-stratigility\src\Next.php:51
 50. Laminas\Stratigility\Next->handle() F:\Demo\flarum\vendor\middlewares\base-path\src\BasePath.php:73
 51. Middlewares\BasePath->process() F:\Demo\flarum\vendor\laminas\laminas-stratigility\src\Next.php:51
 52. Laminas\Stratigility\Next->handle() F:\Demo\flarum\vendor\flarum\core\src\Http\Middleware\ProcessIp.php:24
 53. Flarum\Http\Middleware\ProcessIp->process() F:\Demo\flarum\vendor\laminas\laminas-stratigility\src\Next.php:51
 54. Laminas\Stratigility\Next->handle() F:\Demo\flarum\vendor\laminas\laminas-stratigility\src\MiddlewarePipe.php:76
 55. Laminas\Stratigility\MiddlewarePipe->process() F:\Demo\flarum\vendor\laminas\laminas-stratigility\src\MiddlewarePipe.php:65
 56. Laminas\Stratigility\MiddlewarePipe->handle() F:\Demo\flarum\vendor\laminas\laminas-httphandlerrunner\src\RequestHandlerRunner.php:96
 57. Laminas\HttpHandlerRunner\RequestHandlerRunner->run() F:\Demo\flarum\vendor\flarum\core\src\Http\Server.php:44
 58. Flarum\Http\Server->listen() F:\Demo\flarum\public\index.php:26

clarkwinkelmann

Airy-_- were you using some sort of oauth or third-party login? Or was it a new account created with username+email+password? Does it happen for all new user registration or only some of them?

Can you share your php flarum info output so we can see which other extensions you have installed/enabled?

I've seen this error previously when some data is incorrectly imported into the database from a different forum software, but it usually breaks the discussion list endpoint, not the user endpoints.

In this case the registration endpoint returns a JSON representation of the new users, so it should just be very simple data by default including the username and email that were just validated, some IDs and some dates. But extensions could add additional default data to a user and that data could be invalid.

If the user was indeed created, you could also take a look at what is stored in the users table for that user. Maybe something got corrupted somehow.

Airy-_-

clarkwinkelmann
Hey! thanks for your reply.

I have not used any third parties.
It is a new account created with username + email + password.
This is a brand new flarum, I didn't do anything after the installation, and I registered directly.

flarum 1.1.1
php 8.0.2
mysql 8.0.12

Although there was an error, the user was still created.

This is the information reported by php flarum info

Flarum core 1.1.1
PHP version: 8.0.2
MySQL version: 8.0.12
Loaded extensions: Core, bcmath, calendar, ctype, date, filter, hash, iconv, jso
n, SPL, pcre, readline, Reflection, session, standard, mysqlnd, tokenizer, zip,
zlib, libxml, dom, PDO, bz2, SimpleXML, xml, xmlreader, xmlwriter, openssl, curl
, fileinfo, gd, gettext, mbstring, mysqli, Phar, pdo_mysql

These are all the extensions that have been installed

+----------------------+---------+--------+
| Flarum Extensions    |         |        |
+----------------------+---------+--------+
| ID                   | Version | Commit |
+----------------------+---------+--------+
| flarum-flags         | v1.1.0  |        |
| flarum-tags          | v1.1.0  |        |
| flarum-suspend       | v1.1.0  |        |
| flarum-subscriptions | v1.1.0  |        |
| flarum-sticky        | v1.1.0  |        |
| flarum-statistics    | v1.1.0  |        |
| flarum-nicknames     | v1.1.0  |        |
| flarum-mentions      | v1.1.1  |        |
| flarum-markdown      | v1.1.0  |        |
| flarum-lock          | v1.1.0  |        |
| flarum-likes         | v1.1.0  |        |
| flarum-lang-english  | v1.1.0  |        |
| flarum-emoji         | v1.1.0  |        |
| flarum-bbcode        | v1.1.0  |        |
| flarum-approval      | v1.1.0  |        |
+----------------------+---------+--------+

Base URL: http://flarum.test
Installation path: F:\Demo\conscience
Queue driver: sync
Mail driver: mail
Debug mode: off

Airy-_-

I have found out the cause of this error. To avoid this error, the mailbox needs to be configured correctly. I hope this situation can be improved in the next version.

luceos

Airy-_- the mailbox needs to be configured correctly

What exactly is the solution?

Airy-_-

luceos After the installation is complete, enter the Email option in the admin interface to set the mailbox.

Airy-_-

luceos
To be a digression, this is the first time I have used flarum. Do you know how to set the slug of the article? Just like this article 29421-unable-to-encode-data-to-json. And how to upload pictures and videos when writing an article?

Justoverclock

Airy-_- Do you know how to set the slug of the article? Just like this article 29421-unable-to-encode-data-to-json

you need to write your own slug driver extension for that purpose

Airy-_- And how to upload pictures and videos when writing an article?

you can use fof/upload

clarkwinkelmann

Airy-_- you can use extensions for those.

The default discussion slug should look like this discussion, and it should work in most languages. There used to be extensions offering more options but I think most have been abandoned as the default slug became better.

For files upload there are a few options, the most complete is https://discuss.flarum.org/d/4154-friendsofflarum-upload-the-intelligent-file-attachment-extension