Please follow the below steps to upgrade the Laravel version in your exiting project.

    • Symfony 5 Required

    Laravel 7 upgraded its underlying Symfony components to the 5.x series, which is now also the new minimum compatible version.

    • PHP 7.2.5 Required

    Likelihood Of Impact: Low

    • Updating Dependencies

    Update your laravel/framework to ^7.0 in your composer.json file. In addition, update your nunomaduro/collision to ^4.1, phpunit/phpunit to ^8.5, laravel/tinker to ^2.0, and facade/ignition to ^2.0.

    The following first-party packages have new major releases to support Laravel 7. If there are any, read through their individual upgrade guides before upgrading:

    1. Browser Kit Testing v6.0
    2. Envoy v2.0
    3. Horizon v4.0
    4. Nova v3.0
    5. Scout v8.0
    6. Telescope v3.0
    7. UI v2.0 (No changes necessary)

    Finally, examine any other third-party packages consumed by your application and verify you are using the proper version for Laravel 7 support.
    You must have to update below mentioned packages in composer.json file.
    “require”:{“php”:”^7.2.5”,”doctrine/dbal”:”^2.10”,”fideloper/proxy”:”^4.2”,”fruitcake/laravel-cors”:”^1.0”,”guzzlehttp/guzzle”:”^6.3”,”laravel/framework”:”^7.0”,”laravel/passport”:”^8.4”,”laravel/tinker”:”^2.0”,”spatie/laravel-permission”:”^3.6”},”require-dev”:{“facade/ignition”:”^2.0”,”fzaninotto/faker”:”^1.9.1”,”laravel/ui”:”^2.0”,”mockery/mockery”:”^1.3.1”,”nunomaduro/collision”:”^4.1”,”phpunit/phpunit”:”^8.5”},

    Authentication
    All authentication scaffolding has been moved to the laravel/ui repository. If you are using Laravel’s authentication scaffolding, you should install the ^2.0 release of this package and the package should be installed in all environments. If you were previously including this package in the require-dev object of your application’s composer.json file, you should move it to the require object:
    “^2.0”

    composer require laravel/ui
    • Next, please update your session configuration file’s secure option to have a fallback value of null. You can find it in config/session.php.

    ‘secure’=>env(‘SESSION_SECURE_COOKIE’,null),

    • Second, You’ll need to make some changes in App\Exceptions\Handler class should accept instances of the Throwable interface instead of Exception instances:

    useThrowable;publicfunctionreport($exception);publicfunctionshouldReport($exception);publicfunctionrender($request,$exception);publicfunctionrenderForConsole($output,$exception);

    

  Throwable 
  Throwable 
   Throwable 
   Throwable

    • Now run the below command to upgrade:

      composer update

    • After successfully executing composer update command, check the Laravel version:

      php artisan --version

    • After successfully updating Laravel version, run below command to serve your project.

    npminstallyarnnpmyarn

    php artisan key: generate
  or 
 run dev or  dev
php artisan serve`