# Sage 9 illuminate/support conflicts with custom plugin trying to use latest illuminate/support

**URL:** https://discourse.roots.io/t/sage-9-illuminate-support-conflicts-with-custom-plugin-trying-to-use-latest-illuminate-support/21238
**Category:** sage
**Tags:** sage9
**Created:** 2021-08-06T15:58:28Z
**Posts:** 4

## Post 1 by @nmakris — 2021-08-06T15:58:28Z

I’m currently working on a site that will be using Sage 9 as it’s theme, on a Bedrock container, and a plugin I am developing, I am trying to use the latest version of illuminate/support.

This constantly triggers errors with `PHP Fatal error: Uncaught Symfony\Component\Debug\Exception\FatalThrowableError: Call to undefined function array_except()` when I’m in the wp-admin on a New Post page.

If I drop my plugins illuminate/support version to `5.6` no errors are reported. Is there something I can do or look into, to get this to work correctly, or am I stuck with using `5.6` in my plugin due to the theme.

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## Post 2 by @strarsis — 2021-08-06T16:56:50Z

Laravel deprecated that `array_except` function in favour of a different naming convention:  
[https://laracasts.com/discuss/channels/laravel/array-except-is-deprecated-in-laravel-58](https://laracasts.com/discuss/channels/laravel/array-except-is-deprecated-in-laravel-58)

So this means that you are using some incompatible dependencies.  
My two cents here: The latest `illuminate/support` package doesn’t offer the `array_except` anymore, hence other libraries have issues now.

You may also be interested in the Sage 9.x update branch:  
[https://discourse.roots.io/t/sage-9-1-please-test/20067](https://discourse.roots.io/t/sage-9-1-please-test/20067)

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## Post 3 by @nmakris — 2021-08-06T17:04:07Z

Yeah, as mentioned I’m trying to use the latest version of illuminate/support in my WP Plugin. I think what I’ll need to do is try to find a package that’ll isolate the plugins composer packages to it’s instance, so as to not conflict with Sage 9’s.

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## Post 4 by @nmakris — 2021-08-06T17:55:50Z

Using `php-scoper` worked perfectly.

[Link to the composer package](https://github.com/humbug/php-scoper)

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## Post 5 by @system — 2021-09-17T15:58:31Z

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