Symfony 3.3 built-in server error

Question

I'm developping an app under windows 10 + wamp + php 7 + Symfony 3.3

I'm trying to use the built-in server :

php bin/console server:run
[OK] Server listening on http://127.0.0.1:8000
// Quit the server with CONTROL-C.

And when I go to http://localhost:8000/app_dev.php/ or http://127.0.0.1:8000/app_dev.php

I get this error :

Warning: Unknown: failed to open stream: No such file or directory in Unknown on line 0 
Fatal error: Unknown: Failed opening required 'C:\wamp\www\myproject\vendor\symfony\symfony\src\Symfony\Bundle\WebServerBundle/Resources/router.php' (include_path='.;C:\php\pear') in Unknown on line 0

Same error under every routes. My routes are correct and works fine outside of the built-in server...

Can you help me with this issue please ?

Handmaid

Did you try to close your wamp server and retry ? – Neolith

... yes. And my computer. Even my appartement. going to try with the entire building – Handmaid

Hahaha good plan. You have a space in your path \myproject \vendor, try to remove it. Check your php path. Your error is very strange – Neolith

no more space... It was a typo editing link on SO sorry. "my-project" is not the real name of my project. – Handmaid

maybe a way... github.com/symfony/symfony/issues/23206 but it looks like it's fix 'till jun – Handmaid

Which version of symfony do you use ? You should try to reproduce the bug with the symfony demo project. If the evil bug is still here, try to submit an issue with the modified demo :/ – Neolith

Can you check the file var/logs/dev.log to see if it shows further information as to which file line 0 is referring to? – Blintze

Why are you trying to use the PHP builtin server when you have WAMPServer running – Dragline

Because i'm develping a REST API. – Handmaid

Please update your question with your exact PHP version. PHP 7.0, 7.1 or 7.2? – Swound

Answer 1

I had same problem,

Solved by :

• Delete symfony folder in vendor

• composer update

• If you have antivirus (like Avast) disable it before launching web server

• php bin/console server:run

Blockbuster

Worked for me on Win10 - 64bit, PHP 7.2. Thanks – Pompano

This worked for me: rm -rf vendor; composer update -vvv --profile --prefer-dist – Prevision

I also get this error when I did not notice that the server was started on port 8001 and was pointing my browser on localhost:8000. – Separator

Answer 2

I got the same error, even when installing via composer.

It turns out that for whatever reason when composer downloaded the project, the required file listed in the error you get (vendor\symfony\symfony\src\Symfony\Bundle\WebServerBundle/Resources/router.php) was not included...

To fix this, I manually added it from https://github.com/symfony/web-server-bundle/blob/master/Resources/router.php and then my symfony app worked as expected.

I had to restart my computer in order to actually add the file because somehow I was locked out of adding it even as admin in Windows after launching the php server.

UPDATE:

Even better than manually adding the file, I just deleted the symfony folder from the vendor folder in the project and reran composer update. the router.php file is indeed downloaded. Sometimes when running bin/console server:run it gets deleted. Not sure why.

Xiaoximena

Answer 3

It happened to me when upgrading from Symfony 3.1 to Symfony 3.4.

The reason was that I had left the development server running when I executed the command:

composer update

The solution:

• Delete the contents of vendor folder
• Execute composer update
• Install the new Symfony development server bundle (follow the instructions)

• Execute the server for development in a new port

  php bin/console server:start localhost:3421

Stoller

Answer 4

I had this problem too : it was AVAST that blocked the "router.php" file.

I went into avast -> protection -> quarantine, and put an exception of the router.php file

And then everything worked again

Amplify

Answer 5

I get the same error and I solve this issue by installing the project with composer

composer create-project symfony/framework-standard-edition my_project_name

Scape

This is a guess, isn't it? There isn't even a composer.json in the question. – Swound

this is not a guess , I solve my issue with this solution , In the question I just described my issue – Scape

While your solution did work for your problem, this is not a good solution. It installs a new project, while there is a existing project. This is a 'if you got a blue screen, buy a new computer'-solution. Since there isn't even a composer.json in the question, you just don't know how the project looks like. Symfony Framework Standard Edition will install Twig, Doctrine, etc. It's not clear if OP is even using those components. – Swound