Class 'League\Flysystem\AwsS3v3\AwsS3Adapter' not found (Laravel + Heroku)

问题

connect my laravel 5.4 application in heroku with aws s3 to save and display images that I upload with a dashboard.

In local I have no problem with uploading and viewing the images, even these are stored in the bucket I made. But when I set up aws in heroku to do tests there, I get the error: Class 'League\Flysystem\AwsS3v3\AwsS3Adapter'

I already removed and reinstalled the package from composer, I do not know why the error does not appear in my local environment.

thank you very much.

回答1:

you forgot to install the required library

composer require league/flysystem-aws-s3-v3

good luck

回答2:

@localheinz When I did the deploy I run: composer install

But in heroku the packages install them from the console that has the heroku dashboard.

But when I want to add or remove the package league/flysystem-aws-s3-v3 the following message comes out:

Package listed for update is not installed. Ignoring.

So I think there's a cache in between, because everything works fine for me.

{
"name": "laravel/laravel",
"description": "The Laravel Framework.",
"keywords": ["framework", "laravel"],
"license": "MIT",
"type": "project",
"require": {
    "php": ">=5.6.4",
    "barryvdh/laravel-debugbar": "^2.4",
    "fzaninotto/faker": "^1.6",
    "laravel/framework": "5.4.*",
    "laravel/socialite": "^3.0",
    "laravel/tinker": "~1.0",
    "unisharp/laravel-ckeditor": "^4.6",
    "league/flysystem-aws-s3-v3": "~1.0"
},
"require-dev": {
    "mockery/mockery": "0.9.*"
},
"autoload": {
    "classmap": [
        "database"
    ],
    "psr-4": {
        "App\\": "app/"
    }
},
"autoload-dev": {
    "psr-4": {
        "Tests\\": "tests/"
    }
},
"scripts": {
    "post-root-package-install": [
        "php -r \"file_exists('.env') || copy('.env.example', '.env');\""
    ],
    "post-create-project-cmd": [
        "php artisan key:generate"
    ],
    "post-install-cmd": [
        "Illuminate\\Foundation\\ComposerScripts::postInstall",
        "php artisan optimize"
    ],
    "post-update-cmd": [
        "Illuminate\\Foundation\\ComposerScripts::postUpdate",
        "php artisan optimize"
    ]           
},
"config": {
    "preferred-install": "dist",
    "sort-packages": true,
    "optimize-autoloader": true
}
  }

回答3:

For me I had the same issue and tried many solutions but nothing worked with me. Finally I found out that flysystem-aws-s3-v2 is in composer.lock although I was using flysystem-aws-s3-v3 with the command: composer require league/flysystem-aws-s3-v3 which doesn't change anything in composer.lock so what I did is that I removed vendor folder and composer.lock file and run composer install and that solved the problem for me.

来源：https://stackoverflow.com/questions/45619465/class-league-flysystem-awss3v3-awss3adapter-not-found-laravel-heroku