当我运行 php -d memory_limit = 2G ../composer/composer.phar install 时，我收到有关不存在的参数的错误＆＃34; database_driver＆＃34;参数。但是，如果我从parameters.yml和parameters.yml.dist文件中删除所有引用，那么我的web应用程序将失败：
ParameterNotFoundException in ParameterBag.php line 84:
You have requested a non-existent parameter "database_driver".
Did you mean one of these: "database_name", "database_user"?
所以我很清楚我需要这个参数。
我有＆＃34; database_driver＆＃34;在我的 parameters.yml 和 parameters.yml.dist 文件中定义，它存在于我的 config.yml 文件中。
**为了成功运行＆＃39; composer install命令，我需要更改什么？
注意：我也看到＆＃39; composer的下面输出安装＆＃39;命令说我的composer.lock文件已经过时并且运行了“作曲家更新”。命令，但是当我这样做时，它失败并出现内存不足错误，这没有任何意义，因为我在服务器上有三个内存，而且有28个以上的可用磁盘空间！如果可能的话，我想尝试解决＆＃34; database_driver＆＃34;问题首先**
以上是＆＃39; composter install＆＃39; 命令的输出：
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.json. You may be getting outdated dependencies. Run update to
update them.
Nothing to install or update
Generating autoload files
> Incenteev\ParameterHandler\ScriptHandler::buildParameters
Updating the "app/config/parameters.yml" file
> Sensio\Bundle\DistributionBundle\Composer\ScriptHandler::buildBootstrap
> Sensio\Bundle\DistributionBundle\Composer\ScriptHandler::clearCache
[Symfony\Component\DependencyInjection\Exception\ParameterNotFoundException]
You have requested a non-existent parameter "database_driver". Did you
mean one of these: "database_name", "database_user"?
Script Sensio\Bundle\DistributionBundle\Composer\ScriptHandler::clearCache
handling the symfony-scripts event terminated with an exception
[RuntimeException]
An error occurred when executing the "'cache:clear --no-warmup'" command:
[Symfony\Component\DependencyInjection\Exception\ParameterNotFoundException]
You have requested a non-existent parameter "database_driver". Did you
mean one of these: "database_name", "database_user"?
这是我的 parameters.yml.dist 文件：
# This file is a "template" of what your parameters.yml file should look like
# Set parameters here that may be different on each deployment target of the app,
# e.g. development, staging, production.
# http://symfony.com/doc/current/best_practices/configuration.html#infrastructure-related-configuration
parameters:
database_driver: pdo_mysql
database_host: 127.0.0.1
database_port: 3306
database_name: ##########
database_user: ##########
database_password: ##########
# You should uncomment this if you want use pdo_sqlite
database_path: "%kernel.root_dir%/data.db3"
mailer_transport: smtp
mailer_host: smtp.sendgrid.net
mailer_user: #############
mailer_password: #############
locale: en
# A secret key that's used to generate certain security-related tokens
secret: ############################
这是我的 parameters.yml 文件：
# This file is auto-generated during the composer install
parameters:
database_driver: pdo_mysql
database_server_version: 15.1
database_host: 127.0.0.1
database_port: 3306
database_name: ##########
database_user: ##########
database_password: ##########
database_charset: UTF8
# You should uncomment this if you want use pdo_sqlite
database_path: "%kernel.root_dir%/data.db3"
mailer_transport: smtp
mailer_host: smtp.sendgrid.net
mailer_user: ##########
mailer_password: ##########
locale: en
# A secret key that's used to generate certain security-related tokens
secret: #######################
这是我的 config.yml 文件：
imports:
- { resource: parameters.yml }
- { resource: security.yml }
- { resource: services.yml }
# Put parameters here that don't need to change on each machine where the
# app is deployed
# http://symfony.com/doc/current/best_practices/configuration.html#application-related-configuration
parameters:
locale: en
framework:
#esi: ~
#translator: { fallbacks: ["%locale%"] }
secret: "%secret%"
router:
resource: "%kernel.root_dir%/config/routing.yml"
strict_requirements: ~
form: ~
csrf_protection: ~
validation: { enable_annotations: true }
#serializer: { enable_annotations: true }
templating:
engines: ['twig']
default_locale: "%locale%"
trusted_hosts: ~
trusted_proxies: ~
session:
# handler_id set to null will use default session handler from php.ini
handler_id: ~
fragments: ~
http_method_override: true
# Twig Configuration
twig:
debug: "%kernel.debug%"
strict_variables: "%kernel.debug%"
# Doctrine Configuration
doctrine:
dbal:
driver: "%database_driver%"
server_version: "%database_server_version%"
host: "%database_host%"
port: "%database_port%"
dbname: "%database_name%"
user: "%database_user%"
password: "%database_password%"
charset: "%database_charset%"
# if using pdo_sqlite as your database driver:
# 1. add the path in parameters.yml
# e.g. database_path: "%kernel.root_dir%/data/data.db3"
# 2. Uncomment database_path in parameters.yml.dist
# 3. Uncomment next line:
# path: "%database_path%"
orm:
auto_generate_proxy_classes: "%kernel.debug%"
naming_strategy: doctrine.orm.naming_strategy.underscore
auto_mapping: true
# Swiftmailer Configuration
##swiftmailer:
## transport: "%mailer_transport%"
## host: "%mailer_host%"
## username: "%mailer_user%"
## password: "%mailer_password%"
## port : “%mailer_port%”
## encryption: ~
## spool: { type: memory }
这是我的 config_dev.yml 文件：
imports:
- { resource: config.yml }
framework:
router:
resource: "%kernel.root_dir%/config/routing_dev.yml"
strict_requirements: true
profiler: { only_exceptions: false }
web_profiler:
toolbar: true
intercept_redirects: true
monolog:
handlers:
main:
type: stream
path: "%kernel.logs_dir%/%kernel.environment%.log"
level: debug
channels: [!event]
console:
type: console
channels: [!event, !doctrine]
# uncomment to get logging in your browser
# you may have to allow bigger header sizes in your Web server configuration
#firephp:
# type: firephp
# level: info
#chromephp:
# type: chromephp
# level: info
swiftmailer:
# delivery_address: ###@####.###
最后，这是 composer.json 文件的内容：
{
"name": "symfony/framework-standard-edition",
"license": "MIT",
"type": "project",
"description": "The \"Symfony Standard Edition\" distribution",
"autoload": {
"psr-4": { "": "src/" },
"classmap": [ "app/AppKernel.php", "app/AppCache.php" ]
},
"require": {
"php": ">=5.6.0",
"symfony/symfony": "2.8.*",
"doctrine/orm": "^2.4.8",
"doctrine/doctrine-bundle": "~1.4",
"symfony/swiftmailer-bundle": "~2.3",
"symfony/monolog-bundle": "~2.4",
"sensio/distribution-bundle": "~5.0",
"sensio/framework-extra-bundle": "^3.0.2",
"incenteev/composer-parameter-handler": "~2.0",
"google/recaptcha": "~1.1",
"sendgrid/sendgrid": "~5.5"
},
"require-dev": {
"sensio/generator-bundle": "~3.0",
"symfony/phpunit-bridge": "~2.7"
},
"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",
"platform": {
"php": "5.6.0"
}
},
"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"
}
}
}
感谢您对此问题的任何帮助。
答案 0 :(得分：2)
@Howard Brown
我已通过在 parameter.yml 中添加 database_driver 参数以及 parameter.dist
解决了此问题我想每当我们更新 parameters.yml （同时也应该在prod服务器上的配置）时，你也必须更新文件参数.yml.dist。
以下是 parameter.yml.dist 文件
的示例结构示例：
parameters:
database_host: 127.0.0.1
database_port: *****
database_name: symfony
database_user: root
database_password: *****
database_driver: mysql
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