Call to undefined method Illuminate\Routing\Route::get()

This import is wrong:

use Illuminate\Routing\Route;

You actually don't have to import any class as Laravel registers a global alias Route.

If you want to import the right class, that would be:

use Illuminate\Support\Facades\Route;

comment this:

// use Symfony\Component\Routing\Route;

use this:

use Illuminate\Support\Facades\Route;

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