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I have a problem with Magento, I use X-debug for trying to debug Magento and I have the following Exception:

Exception Has ocurred. InvalidArgumentException: Composer could not find the config file: /var/www/site/magento/var/composer_home/composer.json To initialize a project, please create a composer.json file as described in the https://getcomposer.org/ "Getting Started" section

So yeah it's right in magento/var there is no composer.json, BUT this is a Magento core folder and included in .gitignore given by Magento to one of this famous "don't touch" folder from Magento.

This exception is thrown by the function createComposer in vendor/composer/composer/src/Composer/Factory.php

Someone had similar error ? If yes how did you deal with it ?

PS: in case of minus please let me know why so then I can upgrade this post

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I don't have a solution but today I just saw this same error messaging when performing any bin/magento command.

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Ok since commenting is not enabled. I kept digging with no answers. Then I thought I would create the composer.json file in var/composer_home. The contents of said file was:

{}

Now I am able to execute bin/magento commands without the exception. I'm certain there is another issue, but unless someone can find it this is the workaround I'm using.

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