Symfony Composer Install - Command "app" is not defined - symfony

Question

I've just inherited a bunch of php apps built with Symfony2 from a former colleague. I'm struggling to get them going, but feel like I've very close.
I'm using Composer to install the vendor/ and bin/ directories using composer install. I've deleted (really renamed) the original composer.lock file, because he had some paths for bundles using his local machine's directory.
Running composer install gets me all the way to the end of the composer.json file and then it starts to "Writing lock file" I get an Command "app" is not defined error. What's up with that? I can't run the the php app/console server:run or anything else, because essentially I have yet to create a bootstrap.php.cache file.
I feel like I'm so close! Has anyone run into this before? Below is the output I'm getting from the console. I've still very new to Symfony and really appreciate any help!
Writing lock file
Generating autoload files
[InvalidArgumentException]
Command "app" is not defined.
Script Sensio\Bundle\DistributionBundle\Composer\ScriptHandler::buildBootstrap handling the post-install-cmd event terminated with an exception
[RuntimeException]
An error occurred when generating the bootstrap file.
Updated with composer.json file.
{
"name": "symfony/framework-standard-edition",
"description": "The \"Symfony Standard Edition\" distribution",
"autoload": {
"psr-0": { "": "src/" },
"files": [
"vendor/tobie/ua-parser/php/bin/uaparser.php",
"vendor/simplehtmldom_1_5/simple_html_dom.php"
]
},
"repositories": [
{
"type": "vcs",
"url": "ssh://git#sourcecode.ts.vcu.edu:22/~git/vcu-cas-bundle.git"
}
],
"require": {
"php": ">=5.3.3",
"symfony/symfony": "2.3.*",
"doctrine/orm": ">=2.2.3,<2.4-dev",
"doctrine/doctrine-bundle": "1.2.*",
"twig/extensions": "1.0.*",
"symfony/assetic-bundle": "2.3.*",
"symfony/swiftmailer-bundle": "2.3.*",
"symfony/monolog-bundle": "2.3.*",
"sensio/distribution-bundle": "2.3.*",
"sensio/framework-extra-bundle": "2.3.*",
"sensio/generator-bundle": "2.3.*",
"jms/serializer-bundle": "0.12.*#dev",
"incenteev/composer-parameter-handler": "~2.0",
"beberlei/DoctrineExtensions": "dev-master",
"vcu/cas-bundle": "dev-master",
"tobie/ua-parser": "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": "alpha",
"extra": {
"symfony-app-dir": "app",
"symfony-web-dir": "web",
"branch-alias": {
"dev-master": "2.2-dev"
}
}
}