Error with Symfony Flex: You have misconfigured DNS resolver(s)

Question

When I run the command composer install or composer update it shows me the following

The following exception probably indicates you have misconfigured DNS resolver(s)
                                                                                                                
  [Composer\Downloader\TransportException]                                                                         
  curl error 6 while downloading https://flex.symfony.com/versions.json: Could not resolve host: flex.symfony.com`

I changed DNS but that did not fix the problem.

PHP version : 8.0.0. I test with php version 7.4

That site does not exist. I tried different DNS resolvers (mine, provider, online) and none can find its address. Something is not properly configured somewhere. — Nic3500, May 14 '22 at 01:28
See https://symfony.com/blog/the-old-flex-infrastructure-is-shutting-down — Chris Haas, May 14 '22 at 02:49

score 43 · Answer 1 · edited Jun 16 '22 at 08:13

43

Old Flex infrastructure is being shut down, you need to update Flex to AT LEAST 1.17.1. To do that, you need to run:

composer update symfony/flex --no-plugins --no-scripts

source: https://symfony.com/blog/upgrade-flex-on-your-symfony-projects

edited Jun 16 '22 at 08:13

Alessandro Lai

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answered May 21 '22 at 13:20

qwertz

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I tryed and that helped me in two projects, thanks. – Green Joffer Aug 10 '22 at 13:05
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This should be marked as answer, it also helped me in my SF project – Tomasz Jacek Sep 27 '22 at 06:57

Error with Symfony Flex: You have misconfigured DNS resolver(s)

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