我无法barryvdh/laravel-dompdf使用composer require barryvdh/laravel-dompdf.
我得到的错误是：
[无效参数异常] 找不到 barryvdh/laravel-dompdf 的匹配版本。检查包拼写、您的版本限制，以及该包的稳定性是否与您的最低稳定性 (dev) 相匹配。
所以为了修复错误，我包含barryvdh/laravel-dompdf: master@dev在 composer.json 中并做了一个composer update. 这次它给了我错误：
在任何版本中都找不到请求的包 barryvdh/laravel-dompdf。包名可能有拼写错误
下面是我的 composer.json：
{
"name": "laravel/laravel",
"description": "The Laravel Framework.",
"keywords": ["framework", "laravel"],
"license": "MIT",
"type": "project",
"require": {
"php": "^7.1.3",
"fideloper/proxy": "^4.0",
"guzzlehttp/guzzle": "^6.3",
"laravel/framework": "5.7.*",
"laravel/tinker": "^1.0",
"barryvdh/laravel-dompdf": "master@dev"
},
"repositories":
[
{
"type": "composer",
"url": "https:\/\/www.phpclasses.org\/"
},
{
"packagist": false
}
],
"require-dev": {
"beyondcode/laravel-dump-server": "^1.0",
"filp/whoops": "^2.0",
"fzaninotto/faker": "^1.4",
"mockery/mockery": "^1.0",
"nunomaduro/collision": "^2.0",
"phpunit/phpunit": "^7.0"
},
"autoload": {
"classmap": [
"database/seeds",
"app/includes",
"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"
],
你认为我在这里缺少什么？
MYYA
肥皂起泡泡
Helenr