Middlevare - is not defined

💻 Development
1

Hello,
I’m again at the end of mine knowlege and hope that someone could help me - I have a middleware and want to register it, but I’m still not able to register as I got message that it is not defined, here is the error message:

  • Type: Pimple\Exception\UnknownIdentifierException
  • Code: 0
  • Message: Identifier “OCA\DeviceApp\Middleware\ExceptionMiddleware” is not defined.
  • File: /var/www/html/nextcloud/3rdparty/pimple/pimple/src/Pimple/Container.php

here is the Application PHP with registration:

namespace OCA\DeviceApp\AppInfo;

…
use \OCA\DeviceApp\Middleware\ExceptionMiddleware;
…

class Application extends App {

private $server;

public function __construct(array $urlParams = ) {
parent::__construct(‘deviceapp’, $urlParams);

  $container = $this->getContainer();
  $server = $this->getContainer()->getServer();

  $this->server = $server;

  $container->registerMiddleWare(ExceptionMiddleware::class);

}

and here is the part of middleware file:

namespace OCA\DeviceApp\Middleware;

use \OCP\AppFramework\Middleware;
use \OCP\ILogger;
use \OCP\IConfig;

class ExceptionMiddleware extends Middleware {

private $logger;

private $config;

public function __construct(ILogger $logger, IConfig $config) {
$this->logger = $logger;
$this->config = $config;
}
}

I can’t find why the file is not found on the (hope) right place

nextcloud\apps\deviceapp\lib\Middleware\ExceptionMiddleware.php

I’m using Nextcloud v.17.0.6, in v. 18 the result is the same.

Thank you in advance for any advise.

Bob

2

autoloaders are up to date and also included by your app.php?

3

Thank you Kesselb for the reply, here is the app.php

use OCA\DeviceApp\AppInfo\Application;
use OCP\AppFramework\QueryException;

if ((@include_once DIR . ‘/…/vendor/autoload.php’)=== false) {
throw new Exception(‘Cannot include autoload. Did you run install dependencies using composer?’);
}
try {
/** @var Application $app */
$app = \OC::$server->query(Application::class);
$app->register();
} catch (QueryException $e) {
}

autoload version is “1.3.0”,

4

Run composer dump-autoload in vendor/.

5

Thank you, Done, I got info that autoload files containing 1496 files, but the result is still the same.

solved - I used wrong Nextcloud version (sample app was for Nextcloud version 18-19, I used v. 17 ) - thank you for your support which help me to find the problem.
Bob