Error 500 : Could not resolve service

đź’» Development
1

Hello,

I am currently developping a nextcloud app for the first time and I got this error then trying to use services :

Could not resolve service! Class "service" does not exist

Service :

namespace OCA\Accountancy\Service;

use OCA\Accountancy\Db\AccountMapper;

class AccountService {

    private AccountMapper $mapper;

    public function __construct() {
	}

    public function findAll(string $userId): array {
        return $this->mapper->findAll($this->userId);
	}
}

Mapper :

namespace OCA\Accountancy\Db;

use OCP\DB\QueryBuilder\IQueryBuilder;
use OCP\IDBConnection;
use OCP\AppFramework\Db\QBMapper;

class AccountMapper extends QBMapper {

    public function __construct(IDBConnection $db) {
        parent::__construct($db, 'accountancy_accounts');
    }

    public function findAll(string $userId) : array {
    }
}

And the controller :

namespace OCA\Accountancy\Controller;

use OCP\AppFramework\ApiController;
use OCP\AppFramework\Http;
use OCP\AppFramework\Http\DataResponse;
use OCP\IRequest;

use OCA\Accountancy\Service\AccountService;

class AccountAPIController extends ApiController {

    private AccountService $accountService;
    private ?string $userId;

    	/**
	 * @param string $appName
	 * @param IRequest $request
	 * @param AccountService $service
	 * @param $userId
	 */
    public function __construct(string $appName, IRequest $request, AccountService $service, ?string $userId = null) {
		parent::__construct($appName, $request);
		$this->accountService = $service;
		$this->userId = $userId;
	}

    	/**
	 * @NoAdminRequired
	 * @CORS
	 * @NoCSRFRequired
	 *
	 * Return all of the boards that the current user has access to.
	 * @throws StatusException
	 */
	public function index() : DataResponse {
		$accounts = $this->accountService->findAll($this->userId);
		return new DataResponse($accounts, HTTP::STATUS_OK);
	}

}

I really don’t see what I missed. Could it be related to the migration or some other config ?

I am running on docker if thats help.

Any help would be appreciated !

Edit
Full log entry :

{
    "reqId": "g0YVIYTHLAaXQjpsMIf5",
    "level": 3,
    "time": "2022-11-28T21:42:09+00:00",
    "remoteAddr": "172.22.0.1",
    "user": "nextcloud",
    "app": "index",
    "method": "GET",
    "url": "/apps/accountancy/api/v1/accounts",
    "message": "Could not resolve service! Class \"service\" does not exist",
    "userAgent": "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:108.0) Gecko/20100101 Firefox/108.0",
    "version": "24.0.6.1",
    "exception": {
        "Exception": "OCP\\AppFramework\\QueryException",
        "Message": "Could not resolve service! Class \"service\" does not exist",
        "Code": 0,
        "Trace": [
            {
                "function": "OC\\AppFramework\\Utility\\{closure}",
                "class": "OC\\AppFramework\\Utility\\SimpleContainer",
                "type": "->",
                "args": [
                    "*** sensitive parameters replaced ***"
                ]
            },
            {
                "file": "/var/www/html/lib/private/AppFramework/Utility/SimpleContainer.php",
                "line": 108,
                "function": "array_map",
                "args": [
                    {
                        "__class__": "Closure"
                    },
                    [
                        {
                            "__class__": "ReflectionParameter",
                            "name": "appName"
                        },
                        {
                            "__class__": "ReflectionParameter",
                            "name": "request"
                        },
                        "*** sensitive parameters replaced ***",
                        {
                            "__class__": "ReflectionParameter",
                            "name": "userId"
                        }
                    ]
                ]
            },
            {
                "file": "/var/www/html/lib/private/AppFramework/Utility/SimpleContainer.php",
                "line": 116,
                "function": "buildClass",
                "class": "OC\\AppFramework\\Utility\\SimpleContainer",
                "type": "->",
                "args": [
                    {
                        "__class__": "ReflectionClass",
                        "name": "OCA\\Accountancy\\Controller\\AccountAPIController"
                    }
                ]
            },
            {
                "file": "/var/www/html/lib/private/AppFramework/Utility/SimpleContainer.php",
                "line": 133,
                "function": "resolve",
                "class": "OC\\AppFramework\\Utility\\SimpleContainer",
                "type": "->",
                "args": [
                    "OCA\\Accountancy\\Controller\\AccountApiController"
                ]
            },
            {
                "file": "/var/www/html/lib/private/AppFramework/DependencyInjection/DIContainer.php",
                "line": 465,
                "function": "query",
                "class": "OC\\AppFramework\\Utility\\SimpleContainer",
                "type": "->",
                "args": [
                    "OCA\\Accountancy\\Controller\\AccountApiController"
                ]
            },
            {
                "file": "/var/www/html/lib/private/AppFramework/DependencyInjection/DIContainer.php",
                "line": 437,
                "function": "queryNoFallback",
                "class": "OC\\AppFramework\\DependencyInjection\\DIContainer",
                "type": "->",
                "args": [
                    "OCA\\Accountancy\\Controller\\AccountApiController"
                ]
            },
            {
                "file": "/var/www/html/lib/private/AppFramework/App.php",
                "line": 159,
                "function": "query",
                "class": "OC\\AppFramework\\DependencyInjection\\DIContainer",
                "type": "->",
                "args": [
                    "OCA\\Accountancy\\Controller\\AccountApiController"
                ]
            },
            {
                "file": "/var/www/html/lib/private/Route/Router.php",
                "line": 298,
                "function": "main",
                "class": "OC\\AppFramework\\App",
                "type": "::",
                "args": [
                    "OCA\\Accountancy\\Controller\\AccountApiController",
                    "index",
                    {
                        "__class__": "OC\\AppFramework\\DependencyInjection\\DIContainer"
                    },
                    [
                        "1",
                        "accountancy.account_api.index"
                    ]
                ]
            },
            {
                "file": "/var/www/html/lib/base.php",
                "line": 1030,
                "function": "match",
                "class": "OC\\Route\\Router",
                "type": "->",
                "args": [
                    "/apps/accountancy/api/v1/accounts"
                ]
            },
            {
                "file": "/var/www/html/index.php",
                "line": 36,
                "function": "handleRequest",
                "class": "OC",
                "type": "::",
                "args": []
            }
        ],
        "File": "/var/www/html/lib/private/AppFramework/Utility/SimpleContainer.php",
        "Line": 102,
        "Previous": {
            "Exception": "OCP\\AppFramework\\QueryException",
            "Message": "Could not resolve OCA\\Accountancy\\Service\\AccountService! Class \"OCA\\Accountancy\\Service\\AccountService\" does not exist",
            "Code": 0,
            "Trace": [
                {
                    "file": "/var/www/html/lib/private/AppFramework/Utility/SimpleContainer.php",
                    "line": 133,
                    "function": "resolve",
                    "class": "OC\\AppFramework\\Utility\\SimpleContainer",
                    "type": "->",
                    "args": [
                        "OCA\\Accountancy\\Service\\AccountService"
                    ]
                },
                {
                    "file": "/var/www/html/lib/private/AppFramework/DependencyInjection/DIContainer.php",
                    "line": 465,
                    "function": "query",
                    "class": "OC\\AppFramework\\Utility\\SimpleContainer",
                    "type": "->",
                    "args": [
                        "OCA\\Accountancy\\Service\\AccountService"
                    ]
                },
                {
                    "file": "/var/www/html/lib/private/AppFramework/DependencyInjection/DIContainer.php",
                    "line": 437,
                    "function": "queryNoFallback",
                    "class": "OC\\AppFramework\\DependencyInjection\\DIContainer",
                    "type": "->",
                    "args": [
                        "OCA\\Accountancy\\Service\\AccountService"
                    ]
                },
                {
                    "file": "/var/www/html/lib/private/AppFramework/Utility/SimpleContainer.php",
                    "line": 89,
                    "function": "query",
                    "class": "OC\\AppFramework\\DependencyInjection\\DIContainer",
                    "type": "->",
                    "args": [
                        "OCA\\Accountancy\\Service\\AccountService",
                        true
                    ]
                },
                {
                    "function": "OC\\AppFramework\\Utility\\{closure}",
                    "class": "OC\\AppFramework\\Utility\\SimpleContainer",
                    "type": "->",
                    "args": [
                        "*** sensitive parameters replaced ***"
                    ]
                },
                {
                    "file": "/var/www/html/lib/private/AppFramework/Utility/SimpleContainer.php",
                    "line": 108,
                    "function": "array_map",
                    "args": [
                        {
                            "__class__": "Closure"
                        },
                        [
                            {
                                "__class__": "ReflectionParameter",
                                "name": "appName"
                            },
                            {
                                "__class__": "ReflectionParameter",
                                "name": "request"
                            },
                            "*** sensitive parameters replaced ***",
                            {
                                "__class__": "ReflectionParameter",
                                "name": "userId"
                            }
                        ]
                    ]
                },
                {
                    "file": "/var/www/html/lib/private/AppFramework/Utility/SimpleContainer.php",
                    "line": 116,
                    "function": "buildClass",
                    "class": "OC\\AppFramework\\Utility\\SimpleContainer",
                    "type": "->",
                    "args": [
                        {
                            "__class__": "ReflectionClass",
                            "name": "OCA\\Accountancy\\Controller\\AccountAPIController"
                        }
                    ]
                },
                {
                    "file": "/var/www/html/lib/private/AppFramework/Utility/SimpleContainer.php",
                    "line": 133,
                    "function": "resolve",
                    "class": "OC\\AppFramework\\Utility\\SimpleContainer",
                    "type": "->",
                    "args": [
                        "OCA\\Accountancy\\Controller\\AccountApiController"
                    ]
                },
                {
                    "file": "/var/www/html/lib/private/AppFramework/DependencyInjection/DIContainer.php",
                    "line": 465,
                    "function": "query",
                    "class": "OC\\AppFramework\\Utility\\SimpleContainer",
                    "type": "->",
                    "args": [
                        "OCA\\Accountancy\\Controller\\AccountApiController"
                    ]
                },
                {
                    "file": "/var/www/html/lib/private/AppFramework/DependencyInjection/DIContainer.php",
                    "line": 437,
                    "function": "queryNoFallback",
                    "class": "OC\\AppFramework\\DependencyInjection\\DIContainer",
                    "type": "->",
                    "args": [
                        "OCA\\Accountancy\\Controller\\AccountApiController"
                    ]
                },
                {
                    "file": "/var/www/html/lib/private/AppFramework/App.php",
                    "line": 159,
                    "function": "query",
                    "class": "OC\\AppFramework\\DependencyInjection\\DIContainer",
                    "type": "->",
                    "args": [
                        "OCA\\Accountancy\\Controller\\AccountApiController"
                    ]
                },
                {
                    "file": "/var/www/html/lib/private/Route/Router.php",
                    "line": 298,
                    "function": "main",
                    "class": "OC\\AppFramework\\App",
                    "type": "::",
                    "args": [
                        "OCA\\Accountancy\\Controller\\AccountApiController",
                        "index",
                        {
                            "__class__": "OC\\AppFramework\\DependencyInjection\\DIContainer"
                        },
                        [
                            "1",
                            "accountancy.account_api.index"
                        ]
                    ]
                },
                {
                    "file": "/var/www/html/lib/base.php",
                    "line": 1030,
                    "function": "match",
                    "class": "OC\\Route\\Router",
                    "type": "->",
                    "args": [
                        "/apps/accountancy/api/v1/accounts"
                    ]
                },
                {
                    "file": "/var/www/html/index.php",
                    "line": 36,
                    "function": "handleRequest",
                    "class": "OC",
                    "type": "::",
                    "args": []
                }
            ],
            "File": "/var/www/html/lib/private/AppFramework/Utility/SimpleContainer.php",
            "Line": 122
        },
        "CustomMessage": "--"
    }
}

Github link : https://github.com/NicolasDeGheselle/nextcloud-accountancy

2

Hello,

Did you change the error message in any way?

Please activate the debug mode in your den instance (in the global configuration file). There should be a back trace included, then.

I do not see any obvious does in your code while scanning on my phone. Eventually, my guess was that the file babes are not correctly set. Can you verify these?

Christian

3

PS: are you by chance developing on a windows machine?

4

To be exact this message come from the nextcloud.log file, the server just return a 500 without much information. I added the whole stack in my original post.

“file babes” what’s that ?

5

Yes indeed, I am using docker on Windows. I also added the github link in the original post.

6

Uups. My phone miss-corrected me. I was referring to the file names.

Regarding the windows issue: make sure the file names are set correctly insides the docker container. I had once problems with the case of the letters as the docker container is using Linux file system conventions.

7

Sight, it was indeed the file name (AcountService → AccountService). The simplest things are always the hardest to spot right ?

Thanks a lot for the quick responses :smile:

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