AwsS3Adapter exception appearing locally but not in dev server - php

Question

I'm working locally on a Laravel project, and suddenly started getting the following exception:
ErrorException in FilesystemManager.php line 193:
Class 'League\Flysystem\AwsS3v3\AwsS3Adapter' not found (View: /Users/mypetproject/resources/views/layouts/topheader.blade.php) (View: /Users/mypetproject/resources/views/layouts/topheader.blade.php) (View: /Users/mypetproject/resources/views/layouts/topheader.blade.php)
A version of this is running on a server without any issue. Just to verify, I checked out the same branch, compared composer.json and composer.lock files and they are the same locally and on the server, did a composer update just in case, and it still fails locally but not in the server. The .env file is also the same.
FilesystemManager is in vender/laravel/framework/src/Illuminate/Filesystem and indeed attempts to use League\Flysystem\AwsS3v3\AwsS3Adapter as S3Adapter; however this is also the case with the version running on the server.
As a note, I'm not using S3 at all, and I don't really want to install league/flysystem-aws-s3-v3 since I'm not using it.
Any idea what could be wrong?
This is my composer.json
{
"name": "laravel/laravel",
"description": "The Laravel Framework.",
"keywords": ["framework", "laravel"],
"license": "MIT",
"type": "project",
"require": {
"php": ">=5.5.9",
"laravel/framework": "5.3.*",
"laravelcollective/html": "5.3.*",
"guzzlehttp/guzzle": "^6.2",
"google/cloud-storage": "1.1.5"
},
"require-dev": {
"fzaninotto/faker": "~1.4",
"mockery/mockery": "0.9.*",
"phpunit/phpunit": "~4.0",
"phpspec/phpspec": "~2.1"
},
"autoload": {
"classmap": [
"database"
],
"psr-4": {
"App\\": "app/"
}
},
"autoload-dev": {
"classmap": [
"tests/TestCase.php"
]
},
"scripts": {
"post-install-cmd": [
"php artisan clear-compiled",
"php artisan optimize"
],
"post-update-cmd": [
"php artisan clear-compiled",
"php artisan optimize"
],
"post-root-package-install": [
"php -r \"copy('.env.example', '.env');\""
],
"post-create-project-cmd": [
"php artisan key:generate"
]
},
"config": {
"preferred-install": "dist"
},
"minimum-stability": "dev",
"prefer-stable": true
}

Answer 1

I finally tracked it down to the autoload_static.php and autoload_classmap.php files in vendor/composer/
For some reason it was referencing an incorrect file (one previously using S3):
'App\\IsoClasses\\IsoStorage' => __DIR__ . '/../..' . '/app/IsoClasses/IsoStorageS3.php',
updated to
'App\\IsoClasses\\IsoStorage' => __DIR__ . '/../..' . '/app/IsoClasses/IsoStorage.php',
and it now works.
What is weird is that the dev server's files also have this, but it works in the dev server with no problems.