I am trying to deploy symfony2 application on heroku and I keep getting this error:
-----> PHP app detected
-----> Resolved composer.lock requirement for PHP >=5.3.3 to version 5.6.2.
-----> Installing system packages...
- PHP 5.6.2
- Apache 2.4.10
- Nginx 1.6.0
-----> Installing PHP extensions...
- zend-opcache (automatic; bundled, using 'ext-zend-opcache.ini')
-----> Installing dependencies...
Composer version 1.0-dev (ffffab37a294f3383c812d0329623f0a4ba45387) 2014-11-05 06:04:18
Loading composer repositories with package information
Installing dependencies 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 You may be getting outdated dependencies.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.
- Installing doctrine/lexer (v1.0)
Downloading: connection... Downloading: 0% Downloading: 80% Downloading: 100%
- Installing doctrine/annotations (v1.2.1)
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- Installing doctrine/cache (v1.3.1)
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- Installing doctrine/inflector (v1.0)
Downloading: connection... Downloading: 0% Downloading: 55% Downloading: 100%
- Installing doctrine/collections (v1.2)
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- Installing doctrine/common (v2.4.2)
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- Installing doctrine/data-fixtures (dev-master ac36ccc)
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- Installing twig/twig (v1.16.2)
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- Installing psr/log (1.0.0)
Downloading: connection... Downloading: 0% Downloading: 15% Downloading: 30% Downloading: 45% Downloading: 60% Downloading: 75% Downloading: 100%
- Installing symfony/symfony (v2.5.6)
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- Installing jdorn/sql-formatter (v1.2.17)
Downloading: connection... Downloading: 0% Downloading: 10% Downloading: 35% Downloading: 45% Downloading: 80% Downloading: 95% Downloading: 100%
- Installing doctrine/dbal (v2.4.3)
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- Installing doctrine/doctrine-bundle (v1.2.0)
Downloading: connection... Downloading: 0% Downloading: 5% Downloading: 10% Downloading: 20% Downloading: 25% Downloading: 30% Downloading: 40% Downloading: 45% Downloading: 50% Downloading: 55% Downloading: 60% Downloading: 70% Downloading: 75% Downloading: 80% Downloading: 85% Downloading: 90% Downloading: 100%
- Installing doctrine/doctrine-fixtures-bundle (dev-master 9a5b528)
Downloading: connection... Downloading: 0% Downloading: 15% Downloading: 30% Downloading: 100%
- Installing doctrine/orm (v2.4.6)
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- Installing incenteev/composer-parameter-handler (v2.1.0)
Downloading: connection... Downloading: 0% Downloading: 25% Downloading: 50% Downloading: 75% Downloading: 100%
- Installing knplabs/knp-components (1.3.1)
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- Installing knplabs/knp-paginator-bundle (2.4.1)
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- Installing knplabs/knp-snappy (0.2.1)
Downloading: connection... Downloading: 0% Downloading: 35% Downloading: 70% Downloading: 100%
- Installing knplabs/knp-snappy-bundle (dev-master 4e5a2cf)
Downloading: connection... Downloading: 0% Downloading: 60% Downloading: 95% Downloading: 100%
- Installing sensiolabs/security-checker (v2.0.0)
Downloading: connection... Downloading: 0% Downloading: 90% Downloading: 100%
- Installing sensio/distribution-bundle (v3.0.8)
Downloading: connection... Downloading: 0% Downloading: 5% Downloading: 10% Downloading: 35% Downloading: 40% Downloading: 45% Downloading: 50% Downloading: 55% Downloading: 60% Downloading: 65% Downloading: 70% Downloading: 75% Downloading: 95% Downloading: 100%
- Installing sensio/framework-extra-bundle (v3.0.2)
Downloading: connection... Downloading: 0% Downloading: 15% Downloading: 30% Downloading: 40% Downloading: 45% Downloading: 55% Downloading: 60% Downloading: 70% Downloading: 75% Downloading: 85% Downloading: 90% Downloading: 100%
- Installing kriswallsmith/assetic (v1.2.0)
Downloading: connection... Downloading: 0% Downloading: 5% Downloading: 10% Downloading: 15% Downloading: 20% Downloading: 25% Downloading: 35% Downloading: 40% Downloading: 45% Downloading: 50% Downloading: 55% Downloading: 60% Downloading: 65% Downloading: 70% Downloading: 80% Downloading: 85% Downloading: 90% Downloading: 95% Downloading: 100%
- Installing symfony/assetic-bundle (v2.5.0)
Downloading: connection... Downloading: 0% Downloading: 10% Downloading: 20% Downloading: 30% Downloading: 35% Downloading: 40% Downloading: 45% Downloading: 50% Downloading: 55% Downloading: 60% Downloading: 70% Downloading: 80% Downloading: 90% Downloading: 100%
- Installing monolog/monolog (1.11.0)
Downloading: connection... Downloading: 0% Downloading: 5% Downloading: 10% Downloading: 15% Downloading: 20% Downloading: 25% Downloading: 30% Downloading: 35% Downloading: 40% Downloading: 45% Downloading: 50% Downloading: 55% Downloading: 60% Downloading: 65% Downloading: 70% Downloading: 75% Downloading: 80% Downloading: 85% Downloading: 90% Downloading: 95% Downloading: 100% Downloading: 100%
- Installing symfony/monolog-bundle (v2.6.1)
Downloading: connection... Downloading: 0% Downloading: 15% Downloading: 40% Downloading: 55% Downloading: 70% Downloading: 85% Downloading: 100%
- Installing swiftmailer/swiftmailer (v5.3.0)
Downloading: connection... Downloading: 0% Downloading: 5% Downloading: 10% Downloading: 15% Downloading: 20% Downloading: 25% Downloading: 30% Downloading: 35% Downloading: 40% Downloading: 45% Downloading: 50% Downloading: 55% Downloading: 60% Downloading: 65% Downloading: 70% Downloading: 75% Downloading: 80% Downloading: 85% Downloading: 90% Downloading: 95% Downloading: 100% Downloading: 100%
- Installing symfony/swiftmailer-bundle (v2.3.7)
Downloading: connection... Downloading: 0% Downloading: 5% Downloading: 25% Downloading: 30% Downloading: 55% Downloading: 60% Downloading: 85% Downloading: 90% Downloading: 100%
- Installing twig/extensions (v1.2.0)
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Generating optimized autoload files
Creating the "app/config/parameters.yml" file
PHP Fatal error: Class 'Sensio\Bundle\GeneratorBundle\SensioGeneratorBundle' not found in /tmp/build_634a4dfca497b3cefc3e87e3c0f3c462/app/AppKernel.php on line 30
Script Sensio\Bundle\DistributionBundle\Composer\ScriptHandler::clearCache handling the post-install-cmd event terminated with an exception
[RuntimeException]
An error occurred when executing the "'cache:clear --no-warmup'" command.
install [--prefer-source] [--prefer-dist] [--dry-run] [--dev] [--no-dev] [--no-plugins] [--no-custom-installers] [--no-scripts] [--no-progress] [-v|vv|vvv|--verbose] [-o|--optimize-autoloader] [--ignore-platform-reqs] [packages1] ... [packagesN]
! Push rejected, failed to compile PHP appenter code here
Heroku runs a composer install --no-dev upon push, so no development packages get installed.
That means sensio/generator-bundle must be listed in require, not require-dev, in composer.json (run composer update afterwards to re-generate composer.lock as well and commit both).
Also make sure in AppKernel.php that the bundle is registered outside the if() block that only runs in dev and test envs.
There is confusion between dev & prod mode. Composer is running as prod mode (e.g. --no-dev), but your app is trying to run as dev mode.
Set the ENV var in Heroku:
SYMFONY_ENV=prod