Error code 255 when running composer create-project --prefer-dist laravel/laravel=^6 treehouse

Hello,

I am getting the following 255 error code in Terminal when running the following command to install laravel:

composer create-project --prefer-dist laravel/laravel=^6 treehouse

The full error description is below with the file path updated with "omitted" for any private info:

In Collection.php line 11:

During inheritance of ArrayAccess: Uncaught ErrorException: Return type of
Illuminate\Support\Collection::offsetExists($key) should either be compatib
le with ArrayAccess::offsetExists(mixed $offset): bool, or the #[\ReturnTyp
eWillChange] attribute should be used to temporarily suppress the notice in
/Users/omitted/treehouse/vendor/laravel/framework/src/Illuminate/Sup
port/Collection.php:1277
Stack trace:
#0 /Users/omitted/treehouse/vendor/laravel/framework/src/Illuminate/S
upport/Collection.php(11): Illuminate\Foundation\Bootstrap\HandleExceptions
->handleError(8192, 'Return type of ...', '/Users/omitted...', 1277)
#1 /Users/omitted/treehouse/vendor/composer/ClassLoader.php(582): inc
lude('/Users/omitted...')
#2 /Users/omitted/treehouse/vendor/composer/ClassLoader.php(433): Com
poser\Autoload{closure}('/Users/omitted...')
#3 /Users/omitted/treehouse/vendor/laravel/framework/src/Illuminate/S
upport/helpers.php(109): Composer\Autoload\ClassLoader->loadClass('Illumina
te\Supp...')
#4 /Users/omitted/treehouse/vendor/laravel/framework/src/Illuminate/F
oundation/PackageManifest.php(130): collect(Array)
#5 /Users/omitted/treehouse/vendor/laravel/framework/src/Illuminate/F
oundation/PackageManifest.php(106): Illuminate\Foundation\PackageManifest->
build()
#6 /Users/omitted/treehouse/vendor/laravel/framework/src/Illuminate/F
oundation/PackageManifest.php(89): Illuminate\Foundation\PackageManifest->g
etManifest()
#7 /Users/omitted/treehouse/vendor/laravel/framework/src/Illuminate/F
oundation/PackageManifest.php(78): Illuminate\Foundation\PackageManifest->c
onfig('aliases')
#8 /Users/omitted/treehouse/vendor/laravel/framework/src/Illuminate/F
oundation/Bootstrap/RegisterFacades.php(26): Illuminate\Foundation\PackageM
anifest->aliases()
#9 /Users/omitted/treehouse/vendor/laravel/framework/src/Illuminate/F
oundation/Application.php(219): Illuminate\Foundation\Bootstrap\RegisterFac
ades->bootstrap(Object(Illuminate\Foundation\Application))
#10 /Users/omitted/treehouse/vendor/laravel/framework/src/Illuminate/
Foundation/Console/Kernel.php(320): Illuminate\Foundation\Application->boot
strapWith(Array)
#11 /Users/omitted/treehouse/vendor/laravel/framework/src/Illuminate/
Foundation/Console/Kernel.php(129): Illuminate\Foundation\Console\Kernel->b
ootstrap()
#12 /Users/omitted/treehouse/artisan(35): Illuminate\Foundation\Conso
le\Kernel->handle(Object(Symfony\Component\Console\Input\ArgvInput), Object
(Symfony\Component\Console\Output\ConsoleOutput))
#13 {main}

Script @php artisan package:discover --ansi handling the post-autoload-dump event returned with error code 255

I was able to still open the directory in Visual Studio with no issues but wanted to make sure this won't cause any issues, as I would imagine it would. Any assistance is much appreciated.