Indeks Laravel tidak terdefinisi

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;
Kriss Sachintha