Symfony2 and composer issue: "Could not parse version constraint composer.phar..." - symfony

Question

So I'm having issues trying to get composer to work again after installing the Sonata Admin Bundle on Symfony2. When using the command php composer.phar ...., I get the following error message: [UnexpectedValueException] Could not parse version constraint composer.phar: Invalid version string "composer.phar"
It doesn't matter what action I do with composer, it always produces that error. Well, one exception is php composer.phar require --no-update sonata-project/media-bundle says it updated composer.json with no error message, but didn't actually install anything.
So far I have just removed and reinstalled composer.phar with an updated version. I'm running Symfony 2.2.1-dev on Mac OS 10.7.5 with MAMP and PHP 5.4.4. Not sure if this is related, but I also cannot clear the cache using php app/console cache:clear anymore either. I have to delete the cache via Finder.
Here's my composer.json file just in case:
{
"name": "symfony/framework-standard-edition",
"description": "The \"Symfony Standard Edition\" distribution",
"autoload": {
"psr-0": { "": "src/" }
},
"require": {
"php": "composer.phar",
"symfony/symfony": "2.2.*",
"doctrine/orm": "2.3.*",
"doctrine/doctrine-bundle": "1.2.*",
"twig/extensions": "1.0.*",
"symfony/assetic-bundle": "2.1.*",
"symfony/swiftmailer-bundle": "2.2.*",
"symfony/monolog-bundle": "2.2.*",
"sensio/distribution-bundle": "2.2.*",
"sensio/framework-extra-bundle": "2.2.*",
"sensio/generator-bundle": "2.2.*",
"jms/security-extra-bundle": "1.4.*",
"jms/di-extra-bundle": "1.3.*",
"sonata-project/cache-bundle": "dev-master",
"sonata-project/block-bundle": "dev-master",
"sonata-project/jquery-bundle": "1.8.*",
"knplabs/knp-menu-bundle": "1.1.*-dev",
"sonata-project/exporter": "1.1.*",
"sonata-project/admin-bundle": "dev-master",
"sonata-project/doctrine-orm-admin-bundle": "dev-master",
"doctrine/common": "2.3.x-dev",
"sonata-project/media-bundle": "dev-master"
},
"scripts": {
"post-install-cmd": [
"Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::buildBootstrap",
"Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::clearCache",
"Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::installAssets",
"Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::installRequirementsFile"
],
"post-update-cmd": [
"Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::buildBootstrap",
"Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::clearCache",
"Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::installAssets",
"Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::installRequirementsFile"
]
},
"config": {
"bin-dir": "bin"
},
"minimum-stability": "dev",
"extra": {
"symfony-app-dir": "app",
"symfony-web-dir": "web",
"branch-alias": {
"dev-master": "2.2-dev"
}
}
Any help/advice would be great :)

Answer 1

Looks like you have some typos in your composer file.
Replace "php": "composer.phar" with "php": ">=5.3.3" and add the missing closing bracket at the end of your file :
{
"name": "symfony/framework-standard-edition",
"description": "The \"Symfony Standard Edition\" distribution",
"autoload": {
"psr-0": { "": "src/" }
},
"require": {
"php": ">=5.3.3",
"symfony/symfony": "2.2.*",
"doctrine/orm": "2.3.*",
"doctrine/doctrine-bundle": "1.2.*",
"twig/extensions": "1.0.*",
"symfony/assetic-bundle": "2.1.*",
"symfony/swiftmailer-bundle": "2.2.*",
"symfony/monolog-bundle": "2.2.*",
"sensio/distribution-bundle": "2.2.*",
"sensio/framework-extra-bundle": "2.2.*",
"sensio/generator-bundle": "2.2.*",
"jms/security-extra-bundle": "1.4.*",
"jms/di-extra-bundle": "1.3.*",
"sonata-project/cache-bundle": "dev-master",
"sonata-project/block-bundle": "dev-master",
"sonata-project/jquery-bundle": "1.8.*",
"knplabs/knp-menu-bundle": "1.1.*-dev",
"sonata-project/exporter": "1.1.*",
"sonata-project/admin-bundle": "dev-master",
"sonata-project/doctrine-orm-admin-bundle": "dev-master",
"doctrine/common": "2.3.x-dev",
"sonata-project/media-bundle": "dev-master"
},
"scripts": {
"post-install-cmd": [
"Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::buildBootstrap",
"Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::clearCache",
"Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::installAssets",
"Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::installRequirementsFile"
],
"post-update-cmd": [
"Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::buildBootstrap",
"Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::clearCache",
"Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::installAssets",
"Sensio\\Bundle\\DistributionBundle\\Composer\\ScriptHandler::installRequirementsFile"
]
},
"config": {
"bin-dir": "bin"
},
"minimum-stability": "dev",
"extra": {
"symfony-app-dir": "app",
"symfony-web-dir": "web",
"branch-alias": {
"dev-master": "2.2-dev"
}
}
}