Google App Engine：运行 Laravel 5.6 项目的问题

Question

我正在尝试在 Google App Engine 上运行一个克隆的 Laravel 项目，但无论我尝试走哪条路，我总是发现自己卡在了一个点上：

laravel/framework v5.6.9 requires php ^7.1.3 -> your PHP version (7.0.30) does not satisfy that requirement.

这是我尝试过的：

删除 composer.lock 文件，然后运行 ​​composer update 或 composer install，但我得到了同样的错误:(

供参考，这是我的composer.json 文件：

    "name": "laravel/laravel",
    "description": "The Laravel Framework.",
    "keywords": ["framework", "laravel"],
    "license": "MIT",
    "type": "project",
    "require": {
        "php": "^7.1.3",
        "fideloper/proxy": "~3.3",
        "laravel/framework": "5.6.*",
        "laravel/tinker": "~1.0",
        "ext-ds": "*"
    },
    "require-dev": {
        "filp/whoops": "~2.0",
        "fzaninotto/faker": "~1.4",
        "mockery/mockery": "~1.0",
        "phpunit/phpunit": "~6.0",
        "symfony/thanks": "^1.0"
    },
    "autoload": {
        "classmap": [
            "database/seeds",
            "database/factories"
        ],
        "psr-4": {
            "App\\": "app/"
        }
    },
    "autoload-dev": {
        "psr-4": {
            "Tests\\": "tests/"
        }
    },
    "extra": {
        "laravel": {
            "dont-discover": [
            ]
        }
    },
    "scripts": {
        "post-root-package-install": [
            "@php -r \"file_exists('.env') || copy('.env.example', '.env');\""
        ],
        "post-create-project-cmd": [
            "@php artisan key:generate"
        ],
        "post-autoload-dump": [
            "Illuminate\\Foundation\\ComposerScripts::postAutoloadDump",
            "@php artisan package:discover"
        ],
        "post-deploy-cmd": [
            "chmod -R 755 bootstrap\/cache",
           "php artisan cache:clear"
        ]
    },
    "config": {
        "preferred-install": "dist",
        "sort-packages": true,
        "optimize-autoloader": true
    } 

编辑： 添加我的 app.yaml 文件可能会有所帮助：

runtime: php
env: flex

runtime_config:
  document_root: public

# Ensure we skip ".env", which is only for local development
skip_files:
  - .env
env_variables:
  # Put production environment variables here.
  APP_LOG: errorlog
  APP_KEY: 
  STORAGE_DIR: /tmp 

Answer 1

正如错误所说，您的 PHP 版本与 Laravel 不兼容。

根据您的 yaml 文件，您处于 flex 环境中，因此 GAE 应该会根据您的 composer 文件自动检测您所需的版本。但是，GAE 要求您在没有发布版本的情况下明确说明您需要的版本（请参阅此处https://cloud.google.com/appengine/docs/flexible/php/runtime）。

所以在你的作曲家文件中改变这个

"php": "^7.1.3",

到这里

"php": "7.2.*",

或者这个

"php": "7.1.*",

取决于你想使用哪个版本的 PHP，然后删除你的 composer.lock 文件并运行composer update