Composer Неопределенная переменная: auth

Я получаю сообщение об ошибке «неопределенная переменная: auth» Запуск компоновщика через Capistrano.
Здесь id трассировки стека при запуске cap deploy -d

--> Updating Composer dependencies..........................Preparing to execute     command: "sh -c 'cd /path/to/site/public_html/releases/20141223155437 && SYMFONY_ENV=livetest /usr/bin/php composer.phar update -vvv --prefer-dist'"Execute ([Yes], No, Abort) ?  |y|
✘
*** [err :: server] [ErrorException]
*** [err :: server] Undefined variable: auth
*** [err :: server]
*** [err :: server]
*** [err :: server]
*** [err :: server] Exception trace:
*** [err :: server] () at phar:///path/to/site/public_html/releases/20141223155437   /composer.phar/src/Composer/Util/Git.php:133
*** [err :: server] Composer\Util\ErrorHandler::handle() at phar:///path/to/site/public_html/releases/20141223155437/composer.phar/src/Composer/Util/Git.php:133
*** [err :: server] Composer\Util\Git->runCommand() at phar:///path/to/site/public_html/releases/20141223155437/composer.phar/src/Composer/Repository/Vcs/GitDriver.php:80
*** [err :: server] Composer\Repository\Vcs\GitDriver->initialize() at phar:///path/to/site/public_html/releases/20141223155437/composer.phar/src/Composer/Repository/VcsRepository.php:86
*** [err :: server] Composer\Repository\VcsRepository->getDriver() at phar:///path/to/site/public_html/releases/20141223155437/composer.phar/src/Composer/Repository/VcsRepository.php:113
*** [err :: server] Composer\Repository\VcsRepository->initialize() at phar:///path/to/site/public_html/releases/20141223155437/composer.phar/src/Composer/Repository/ArrayRepository.php:170
*** [err :: server] Composer\Repository\ArrayRepository->getPackages() at phar:///path/to/site/public_html/releases/20141223155437/composer.phar/src/Composer/DependencyResolver/Pool.php:100
*** [err :: server] Composer\DependencyResolver\Pool->addRepository() at phar:///path/to/site/public_html/releases/20141223155437/composer.phar/src/Composer/Installer.php:387
*** [err :: server] Composer\Installer->doInstall() at phar:///path/to/site/public_html/releases/20141223155437/composer.phar/src/Composer/Installer.php:224
*** [err :: server] Composer\Installer->run() at phar:///path/to/site/public_html/releases/20141223155437/composer.phar/src/Composer/Command/UpdateCommand.php:134
*** [err :: server] Composer\Command\UpdateCommand->execute() at phar:///path/to/site/public_html/releases/20141223155437/composer.phar/vendor/symfony/console/Symfony/Component/Console/Command/Command.php:252
*** [err :: server] Symfony\Component\Console\Command\Command->run() at phar:///path/to/site/public_html/releases/20141223155437/composer.phar/vendor/symfony/console/Symfony/Component/Console/Application.php:874
*** [err :: server] Symfony\Component\Console\Application->doRunCommand() at phar:///path/to/site/public_html/releases/20141223155437/composer.phar/vendor/symfony/console/Symfony/Component/Console/Application.php:195
*** [err :: server] Symfony\Component\Console\Application->doRun() at phar:///path/to/site/public_html/releases/20141223155437/composer.phar/src/Composer/Console/Application.php:146
*** [err :: server] Composer\Console\Application->doRun() at phar:///path/to/site/public_html/releases/20141223155437/composer.phar/vendor/symfony/console/Symfony/Component/Console/Application.php:126
*** [err :: server] Symfony\Component\Console\Application->run() at phar:///path/to/site/public_html/releases/20141223155437/composer.phar/src/Composer/Console/Application.php:83
*** [err :: server] Composer\Console\Application->run() at phar:///path/to/site/public_html/releases/20141223155437/composer.phar/bin/composer:43
*** [err :: server] require() at /path/to/site/public_html/releases/20141223155437/composer.phar:25
*** [err :: server]
*** [err :: server]
*** [err :: server] 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] [--ignore-platform-reqs] [--prefer-stable] [--prefer-lowest] [packages1] ... [packagesN]
*** [deploy:update_code] rolling back
Preparing to execute command: "rm -rf /path/to/site/public_html/releases/20141223155437; true"Execute ([Yes], No, Abort) ?  |y|
failed: "env PHP_PATH=/usr/bin/php sh -c 'sh -c '\\''cd /path/to/site/public_html/releases/20141223155437 && SYMFONY_ENV=livetest /usr/bin/php composer.phar update -vvv --prefer-dist'\\'''" on server

Capifony загружает новую сборку композитора каждый раз, так что эта ошибка будет возникать из последней сборки.
Кто-нибудь знает, что это может быть?

РЕДАКТИРОВАТЬ: Composer file:

{
"name": "symfony/framework-standard-edition",
"license": "MIT",
"type": "project",
"description": "The \"Symfony Standard Edition\" distribution",
"autoload": {
"psr-0": { "": "src/", "SymfonyStandard": "app/" }
},

"require": {
"php": ">=5.3.3",
"symfony/symfony": "2.5.*",
"doctrine/orm": "~2.2,>=2.2.3",
"doctrine/doctrine-bundle": "~1.2",
"twig/extensions": "~1.0",
"symfony/assetic-bundle": "~2.3",
"symfony/swiftmailer-bundle": "~2.3",
"symfony/monolog-bundle": "~2.4",
"symfony/css-selector": "3.0.*@dev",
"sensio/distribution-bundle": "~3.0",
"sensio/framework-extra-bundle": "~3.0",
"incenteev/composer-parameter-handler": "~2.0",
"friendsofsymfony/user-bundle": "2.0.*@dev",
"pagerfanta/pagerfanta": "1.0.*@dev",
"white-october/pagerfanta-bundle": "1.0.*@dev",
"gedmo/doctrine-extensions": "v2.3.7",
"stof/doctrine-extensions-bundle":"1.1.*"},
"require-dev": {
"sensio/generator-bundle": "~2.3"},
"scripts": {
},
"config": {
"bin-dir": "bin"},
"extra": {
"symfony-app-dir": "app",
"symfony-web-dir": "web",
"incenteev-parameters": {
"file": "app/config/parameters.yml"},
"branch-alias": {
"dev-master": "2.5-dev"}
}
}

Я удалил несколько личных репозиториев

Версия композитора:

Composer version 1.0-dev (4569f528f66739ec0a3be1075e2c01d6062b0b41) 2014-12-22 11:50:02