我的composer.json遇到了这个问题。当我尝试运行 composer update -vvv 时，它开始下载所有必需的程序包并被卡住，从未结束该过程，并且最终没有给出任何错误（等待〜12hrs）。我想解决此问题，因此以后我可以毫无问题地升级symfony版本。在此先感谢您的帮助。 作曲家诊断仅显示警告，其他都没问题。这是我的composer.json。
{
"name": "",
"license": "MIT",
"type": "project",
"description": "",
"autoload": {
"psr-4": {
"": "src/"
},
"classmap": [ "app/AppKernel.php", "app/AppCache.php" ]
},
"autoload-dev": {
"files": [ "vendor/symfony/symfony/src/Symfony/Component/VarDumper/Resources/functions/dump.php" ]
},
"repositories": [
{
"type": "vcs",
"url": "https://github.com/..../banklink"
}
],
"require": {
"php": ">=5.3.9",
"symfony/symfony": "2.8.*",
"doctrine/orm": "^2.4.8",
"doctrine/doctrine-bundle": "~1.4",
"twig/extensions": "~1.0",
"symfony/assetic-bundle": "~2.3",
"symfony/swiftmailer-bundle": "~2.3,>=2.3.10",
"symfony/monolog-bundle": "^3.0.2",
"sensio/distribution-bundle": "~4.0",
"sensio/framework-extra-bundle": "^3.0.2",
"sensio/generator-bundle": "~3.0",
"incenteev/composer-parameter-handler": "~2.0",
"components/jquery": "1.9.*",
"components/jqueryui": "1.11.*",
"components/bootstrap": "3.3.*",
"phpunit/phpunit": "4.5.*@dev",
"isoft/mssql-bundle": "master-dev",
"ob/highcharts-bundle": "1.2.*@dev",
"knplabs/knp-snappy-bundle": "1.2.*@dev",
"inori/banklink": "dev-master",
"whiteoctober/tcpdf-bundle": "1.0.0",
"tecnick.com/tcpdf": "6.2.6",
"sonata-project/admin-bundle": "2.3.*",
"sonata-project/doctrine-orm-admin-bundle": "2.3.*",
"sonata-project/user-bundle": "~2.3@dev",
"friendsofsymfony/user-bundle": "1.3.*@dev",
"sonata-project/easy-extends-bundle": "~2.1@dev",
"symfony/var-dumper": "~3.0@dev",
"simplethings/entity-audit-bundle": "^1.0,>=1.0.2",
"sonata-project/formatter-bundle": "~2.4@dev",
"guzzlehttp/guzzle": "6.0.*@dev",
"zendframework/zend-stdlib": "2.6.0"
},
"scripts": {
"symfony-scripts": [
"Incenteev\\ParameterHandler\\ScriptHandler::buildParameters",
"Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::buildBootstrap",
"Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::clearCache",
"Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::installAssets",
"Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::installRequirementsFile",
"Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::prepareDeploymentTarget"
],
"post-install-cmd": [
"@symfony-scripts"
],
"post-update-cmd": [
"@symfony-scripts"
]
},
"config": {
"bin-dir": "bin"
},
"minimum-stability": "dev",
"extra": {
"symfony-app-dir": "app",
"symfony-web-dir": "web",
"symfony-assets-install": "relative",
"incenteev-parameters": {
"file": "app/config/parameters.yml"
},
"branch-alias": {
"dev-master": "2.8-dev"
}
}
}