В PackageManifest.php Line 131: Неопределенный индекс: имя Laravel 7
composer self-update --stable
Vivacious Vole
composer self-update --stable
$ composer update
Try this, it is worked for me, in following file:
vendor/laravel/framework/src/Illuminate/Foundation/PackageManifest.php
Find this line and comment it
$packages = json_decode($this->files->get($path), true);
Add two new lines after above commented line
$installed = json_decode($this->files->get($path), true);
$packages = $installed['packages'] ?? $installed;
$packages = json_decode($this->files->get($path), true);
$installed = json_decode($this->files->get($path), true);
$packages = $installed['packages'] ?? $installed;
data add in xampp