Heroku rejects push because it cannot clear the cache Symfony3 - php

Question

Working all day to deploy my application to heroku, but every time it throws out an error. And i am all out of clues, and have a very angry customer.
When i try to add my project to heroku with the command git push heroku master every thing is fine till the cache needs to be cleared.
Updating the "app/config/parameters.yml" file
remote: > Sensio\Bundle\DistributionBundle\Composer\ScriptHandler::buildBootstrap
remote: > Sensio\Bundle\DistributionBundle\Composer\ScriptHandler::clearCache
remote: Could not open input file: app/console
remote: Script Sensio\Bundle\DistributionBundle\Composer\ScriptHandler::clearCache handling the symfony-scripts event terminated with an exception
remote:
remote:
remote: [RuntimeException]
remote: An error occurred when executing the "'cache:clear --no-warmup'" command:
remote: Could not open input file: app/console
remote: .
You would think, it's the same as this git issue
Also a know problem, that i am using a wrong type of mapping.
But i think it's fine.
I updated my composer and cleared the cache of my composer
And when i clear the cache with php bin/console cache:clear everything is fine!
I followed this tutorial
And got some side information from the symfony site.
Also found this stack - with the explanation what is going on, but this is still not solving my problem.
Maybe it's somewhere in my composer file, or my git ignore.
But honestely, i have no idea anymore.
{
"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" ]
},
"autoload-dev": {
"psr-4": { "Tests\\": "tests/" }
},
"require": {
"php": ">=5.5.9",
"symfony/symfony": "3.1.*",
"doctrine/orm": "^2.5",
"doctrine/doctrine-bundle": "^1.6",
"doctrine/doctrine-cache-bundle": "^1.2",
"symfony/swiftmailer-bundle": "^2.3",
"symfony/monolog-bundle": "^2.8",
"symfony/polyfill-apcu": "^1.0",
"sensio/distribution-bundle": "^5.0",
"sensio/framework-extra-bundle": "^3.0.2",
"incenteev/composer-parameter-handler": "^2.0",
"friendsofsymfony/user-bundle": "~2.0#dev",
"symfony/assetic-bundle": "^2.8",
"stfalcon/tinymce-bundle": "2.0",
"egeloen/ckeditor-bundle": "^4.0",
"whiteoctober/tcpdf-bundle": "^1.0",
"gregwar/captcha-bundle": "^2.0"
},
"require-dev": {
"sensio/generator-bundle": "^3.0",
"symfony/phpunit-bridge": "^3.0"
},
"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"
],
"compile": [
"rm web/app_dev.php",
"bin/console cache:clear",
"bin/console assetic:dump"
]
},
"config": {
"platform": {
"php": "5.5.9"
}
},
"extra": {
"symfony-app-dir": "app",
"symfony-bin-dir": "bin",
"symfony-var-dir": "var",
"symfony-web-dir": "web",
"symfony-tests-dir": "tests",
"symfony-assets-install": "relative",
"incenteev-parameters": {
"file": "app/config/parameters.yml"
},
"branch-alias": {
"dev-master": "3.1-dev"
}
}
}

Answer 1

The solution that worked for me. New Symfony 3 installation: Could not open input file: app/console in composer install
EXPLANATION:
That's what I guess. When you push your code to Heroku, the platform compiles your project files on the /tmp dir. What happens if you don't have a var dir when Heroku compiles your code? What happens is that Symfony creates a new one:
vendor/sensio/distribution-bundle/Composer/ScriptHandler.php:462
protected static function useNewDirectoryStructure(array $options)
{
return isset($options['symfony-var-dir']) && is_dir($options['symfony-var-dir']);
}
Then when Heroku moves your new code to the /appdir, the Symfony configuration still points to the old placement /tmp, but files placed at /tmp are now deleted!

Answer 2

You upgraded a Symfony 2 app to 3.
But it is not sufficient to change the requirements in composer.json.
The structure changed, so you need to first create a new fresh app with Symfony 3 and then move the old Symfony 2 app to the fresh Symfony 3 one, bundle by bundle, composer requirement by composer requirement.
This way you'll be sure your app will work well on version 3.
If you try to simply upgrade the requirements from a Symfony 2 app, then you'll create a lot of bugs, as the scripts changed, the structure changed, the requirements changed...
The only safe way is to start a new Symfony 3 project and then port the old Symfony 2 into it.

Answer 3

I took a look at your github repository. Seems like it's in the Symfony3 format, so I'm not certain what is going on. I want to try something, but I'm not sure if it will work.
Try editing your composer.json file manually to add the bin directory:
"config": {
"bin-dir": "bin",
"platform": {
"php": "5.5.9"
}
},
Then see if that fixes the problem.
EDIT #2
Now revert those changes and try this:
"extra": {
"symfony-app-dir": "bin",
"symfony-bin-dir": "bin",
"symfony-var-dir": "var",
In other words change the app directory to "bin".