---
title: "Determine Whether .gitignore is Ignoring a File"
date: "2022-02-17T16:21:30+00:00"
summary:
image:
type: "article"
url: "/acquia-cloud-platform/help/93416-determine-whether-gitignore-ignoring-file"
id: "97e8a5f4-6644-4dba-b2b5-091e7361129c"
---

There are cases where, on our platform, a PHP error indicate a class is missing. Usually a cache clear with Drush will put things back in order. There are cases when Drush is unable to operate, either, and will return an Uncaught Error:

`PHP Fatal error:  Uncaught Error: Class 'Symfony\Component\Console\Output\StreamOutput' not found in /mnt/www/html/example/vendor/drush/drush/src/Preflight/PreflightLog.php:15`

It may be working locally, however. If that's the case, the cause could be a PHP file that is not included (or which is ignored) in your Git repository.

Using the example above, we were able to find the file locally using the following command:

`find . -name StreamOutput.php`

Through that we were able to find that the local file path was `./vendor/symfony/console/Output/StreamOutput.php`

Using that output, at the root of your repository, (that is, above the docroot folder), run this command:

`git check-ignore -v ./vendor/symfony/console/Output/StreamOutput.php`

That will either output nothing (meaning `.gitignore` is not responsible), or it will return something like this:

`.gitignore:31:console    ./vendor/symfony/console/Output/StreamOutput.php`

The first bit tells us that the `.gitignore` file is at play here, and that on line 31, there's a reference to the `console` folder. To rectify this, we edited the `.gitignore` file, removed line 31, added the file or directory to the repository, commit it, and [push it to your environment using our code workflow](/node/56318).

Sometimes, we have seen [Mac Git case problems](/node/94421), where the missing class was `Index (`which would mean the PHP file name is `Index.php`) but the file `index.php` has been ignored, and the combination of the `.gitignore` file and the case problems led to a class not found error. Removing that line solved the problem.