I got a new Laravel project but it showing the following error and it is not letting me run it using php artisan serve I tried using composer self-update too but it is not working....
Here's the error =>
php artisan serve
PHP Fatal error: During inheritance of ArrayAccess: Uncaught ErrorException: Return type of Illuminate\Support\Collection::offsetExists($key) should either be compatible with ArrayAccess::offsetExists(mixed $offset): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in C:\xampp\htdocs\fitway\vendor\laravel\framework\src\Illuminate\Support\Collection.php:1349Stack trace:#0 C:\xampp\htdocs\fitway\vendor\laravel\framework\src\Illuminate\Support\Collection.php(11): Illuminate\Foundation\Bootstrap\HandleExceptions->handleError(8192, 'Return type of ...', 'C:\xampp\htdocs...', 1349)#1 C:\xampp\htdocs\fitway\vendor\composer\ClassLoader.php(576): include('C:\xampp\htdocs...')#2 C:\xampp\htdocs\fitway\vendor\composer\ClassLoader.php(427): Composer\Autoload{closure}('C:\xampp\htdocs...')#3 C:\xampp\htdocs\fitway\vendor\laravel\framework\src\Illuminate\Support\helpers.php(110): Composer\Autoload\ClassLoader->loadClass('Illuminate\Supp...')#4 C:\xampp\htdocs\fitway\vendor\laravel\framework\src\Illuminate\Foundation\PackageManifest.php(130): collect(Array)#5 C:\xampp\htdocs\fitway\vendor\laravel\framework\src\Illuminate\Foundation\PackageManifest.php(106): Illuminate\Foundation\PackageManifest->build()
#6 C:\xampp\htdocs\fitway\vendor\laravel\framework\src\Illuminate\Foundation\PackageManifest.php(89): Illuminate\Foundation\PackageManifest->getManifest()#7 C:\xampp\htdocs\fitway\vendor\laravel\framework\src\Illuminate\Foundation\PackageManifest.php(78): Illuminate\Foundation\PackageManifest->config('aliases')#8 C:\xampp\htdocs\fitway\vendor\laravel\framework\src\Illuminate\Foundation\Bootstrap\RegisterFacades.php(26): Illuminate\Foundation\PackageManifest->aliases()#9 C:\xampp\htdocs\fitway\vendor\laravel\framework\src\Illuminate\Foundation\Application.php(230): Illuminate\Foundation\Bootstrap\RegisterFacades->bootstrap(Object(Illuminate\Foundation\Application))#10 C:\xampp\htdocs\fitway\vendor\laravel\framework\src\Illuminate\Foundation\Console\Kernel.php(310): Illuminate\Foundation\Application->bootstrapWith(Array)#11 C:\xampp\htdocs\fitway\vendor\laravel\framework\src\Illuminate\Foundation\Console\Kernel.php(127): Illuminate\Foundation\Console\Kernel->bootstrap()
#12 C:\xampp\htdocs\fitway\artisan(37): Illuminate\Foundation\Console\Kernel->handle(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony\Component\Console\Output\ConsoleOutput))#13 {main} in C:\xampp\htdocs\fitway\vendor\laravel\framework\src\Illuminate\Support\Collection.php on line 11
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 #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in
C:\xampp\htdocs\fitway\vendor\laravel\framework\src\Illuminate\Support\Collection.php:1349
Stack trace:
#0 C:\xampp\htdocs\fitway\vendor\laravel\framework\src\Illuminate\Support\Collection.php(11): Illuminate\Foundation\Bootstrap\HandleExceptions->handle
Error(8192, 'Return type of ...', 'C:\xampp\htdocs...', 1349)#1 C:\xampp\htdocs\fitway\vendor\composer\ClassLoader.php(576): include('C:\xampp\htdocs...')#2 C:\xampp\htdocs\fitway\vendor\composer\ClassLoader.php(427): Composer\Autoload{closure}('C:\xampp\htdocs...')#3 C:\xampp\htdocs\fitway\vendor\laravel\framework\src\Illuminate\Support\helpers.php(110): Composer\Autoload\ClassLoader->loadClass('Illuminate\Supp
...')#4 C:\xampp\htdocs\fitway\vendor\laravel\framework\src\Illuminate\Foundation\PackageManifest.php(130): collect(Array)#5 C:\xampp\htdocs\fitway\vendor\laravel\framework\src\Illuminate\Foundation\PackageManifest.php(106): Illuminate\Foundation\PackageManifest->build()
#6 C:\xampp\htdocs\fitway\vendor\laravel\framework\src\Illuminate\Foundation\PackageManifest.php(89): Illuminate\Foundation\PackageManifest->getManife
st()#7 C:\xampp\htdocs\fitway\vendor\laravel\framework\src\Illuminate\Foundation\PackageManifest.php(78): Illuminate\Foundation\PackageManifest->config('a
liases')#8 C:\xampp\htdocs\fitway\vendor\laravel\framework\src\Illuminate\Foundation\Bootstrap\RegisterFacades.php(26): Illuminate\Foundation\PackageManifest-
aliases()#9 C:\xampp\htdocs\fitway\vendor\laravel\framework\src\Illuminate\Foundation\Application.php(230): Illuminate\Foundation\Bootstrap\RegisterFacades->bo
otstrap(Object(Illuminate\Foundation\Application))#10 C:\xampp\htdocs\fitway\vendor\laravel\framework\src\Illuminate\Foundation\Console\Kernel.php(310): Illuminate\Foundation\Application->bootstrapWit
h(Array)#11 C:\xampp\htdocs\fitway\vendor\laravel\framework\src\Illuminate\Foundation\Console\Kernel.php(127): Illuminate\Foundation\Console\Kernel->bootstrap
()#12 C:\xampp\htdocs\fitway\artisan(37): Illuminate\Foundation\Console\Kernel->handle(Object(Symfony\Component\Console\Input\ArgvInput), Object(Symfony
\Component\Console\Output\ConsoleOutput))#13 {main}
Please tell me how can I resolve it.
I have tried changing the Php version in the .env file as well but it is not working either.
Chat or Gemini have not been much of help either....