CODEWITHSUNDEEP
phpsymfonysymfony4
Speedy059
Speedy059

Reputation: 669

Symony 4 - Migrating from 3.x to 4.x Error with server:run

I have been working on migrating my Symfony 3.x project to the latest Symfony 4.x version. What I did was create a fresh install of Symfony 4.x and have been moving my bundle to Symfony 4 as a the main App namespace (renamed all my namespaces and use). I followed the correct folder structure in the Symfony 4 docs, but I obviously missed something.

When I try to do "bin/console server:run", I am presented with this error:

    php bin/console server:run

    Fatal error: Uncaught 
    Symfony\Component\Debug\Exception\ClassNotFoundException: Attempted to load 
    class "Kernel" from namespace "App".
    Did you forget a "use" statement for "Symfony\Component\HttpKernel\Kernel"? 
    in C:\wamp\www\DBViewer\bin\console:37
    Stack trace:
#0 {main}
  thrown in C:\wamp\www\DBViewer\bin\console on line 37

I checked line 37 in the console and all it was: 

$kernel = new Kernel($env, $debug);

I've compared the the bin/console from my working Symfony 4 app to this Symfony 4 app, and it is the same. Any ideas what could be causing this?

Upvotes: 0

Views: 96

Answers (1)

Webnet.fr
Webnet.fr

Reputation: 59

Verfify your composer.json file. In Symfony 3.4 it used to be:

"autoload": {
    "psr-4": {
        "AppBundle\\": "src/AppBundle"
    },
    "classmap": [ "app/AppKernel.php", "app/AppCache.php" ]
},

while in Symfony 4 it is simply:

"autoload": {
    "psr-4": {
        "App\\": "src/"
    }
},

In Symfony 4 your AppKernel.php must be directly in "src/" folder and not in "app/".

Hope this helps.

Upvotes: 1

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