Laravel 4.2 Composer 安裝錯誤：“無法掃描類”

Question

我想通過 Composer 在我的新 Laravel 4.2 安裝上安裝一些軟件包。 但是，我得到了一個例外。

這是我的作曲家文件：

{
    "name": "laravel/laravel",
    "description": "The Laravel Framework.",
    "keywords": ["framework", "laravel"],
    "license": "MIT",
    "license": "MIT",   
    "require": {
        "laravel/framework": "4.2.*",
        "zizaco/confide": "~4.0@dev",
        "zizaco/entrust": "1.2.*@dev",
        "barryvdh/laravel-ide-helper": "1.*",
        "fzaninotto/faker": "1.3.*@dev",
        "bllim/datatables": "~1.3",
        "barryvdh/laravel-debugbar": "~1.7"
    },
    "require-dev": {
        "way/generators": "~2.6",
        "barryvdh/laravel-ide-helper": "~1.11"
    },
    "autoload": {
        "classmap": [
            "app/commands",
            "app/controllers",
            "app/models",
            "app/database/migrations",
            "app/database/seeds",
            "app/tests/TestCase.php",
            "app/controllers/admin",
            "app/controllers/user"
        ]
    },
    "scripts": {
        "post-install-cmd": [
            "php artisan clear-compiled",
            "php artisan optimize"
        ],
        "post-update-cmd": [
            "php artisan clear-compiled",
            "php artisan optimize"
        ],
        "post-update-cmd":[
            "php artisan ide-helper:generate"
        ],
        "post-create-project-cmd": [
            "php artisan key:generate"
        ]
    },
    "config": {
        "preferred-install": "dist"
    },
    "minimum-stability": "stable"
}

運行composer install我得到：

$ composer install
Loading composer repositories with package information
Installing dependencies (including require-dev) from lock file
Warning: The lock file is not up to date with the latest changes in composer.jso
n. You may be getting outdated dependencies. Run update to update them.
Nothing to install or update
Generating autoload files



  [RuntimeException]
  Could not scan for classes inside "app/controllers/admin" which does not ap
  pear to be a file nor a folder



install [--prefer-source] [--prefer-dist] [--dry-run] [--dev] [--no-dev] [--no-p
lugins] [--no-custom-installers] [--no-scripts] [--no-progress] [-v|vv|vvv|--ver
bose] [-o|--optimize-autoloader] [packages1] ... [packagesN]

這基本上是一個全新的 Laravel 安裝。 為什么我收到錯誤：

Could not scan for classes inside "app/controllers/admin" which does not appear to be a file nor a folder

更新

使用composer update ：

$ composer update
Loading composer repositories with package information
Updating dependencies (including require-dev)
  - Removing mockery/mockery (0.9.2)
  - Removing phpunit/phpunit (4.3.4)
  - Removing phpunit/php-code-coverage (2.0.11)
  - Removing phpunit/php-token-stream (1.3.0)
  - Removing phpunit/php-file-iterator (1.3.4)
  - Removing phpunit/php-timer (1.0.5)
  - Removing phpunit/phpunit-mock-objects (2.3.0)
  - Removing phpunit/php-text-template (1.2.0)
  - Removing doctrine/instantiator (1.0.4)
  - Removing symfony/yaml (v2.5.6)
  - Removing sebastian/comparator (1.0.1)
  - Removing sebastian/diff (1.2.0)
  - Removing sebastian/environment (1.2.0)
  - Removing sebastian/exporter (1.0.2)
  - Removing sebastian/version (1.0.3)
  - Removing summerstreet/woodling (v0.1.6)
Writing lock file
Generating autoload files



  [RuntimeException]
  Could not scan for classes inside "app/controllers/admin" which does not ap
  pear to be a file nor a folder



update [--prefer-source] [--prefer-dist] [--dry-run] [--dev] [--no-dev] [--lock]
 [--no-plugins] [--no-custom-installers] [--no-scripts] [--no-progress] [--with-
dependencies] [-v|vv|vvv|--verbose] [-o|--optimize-autoloader] [packages1] ... [
packagesN]

Answer 1

嘗試使用composer update 。 這就是它在錯誤中所說的。

...You may be getting outdated dependencies. Run update to update them...

更新：

Composer 試圖找到文件夾app/controllers/admin ，它不是 Laravel 中的標准文件夾。 你確定這個文件夾存在嗎？ 如果沒有，您可以嘗試從 composer.json 中刪除這些和其他自定義文件夾，並手動添加它們。 您還可以創建目錄並保持 composer.json 不變。

Answer 2

對於 2021 年的 laravel 8，如果不存在則在控制器中添加文件夾 admin 並轉到 composer.json 並將類映射更改為

  "classmap": [
        "app/http/controllers/admin"
    ]