Fatal error: Uncaught RuntimeException: Cache directory "/app/app/cache/prod" is not writable. in /app/vendor/symfony/symfony/src/Symfony/Component/ClassLoader/ClassCollectionLoader.php:280 Stack trace: #0 /app/vendor/symfony/symfony/src/Symfony/Component/ClassLoader/ClassCollectionLoader.php(159): Symfony\Component\ClassLoader\ClassCollectionLoader::writeCacheFile('/app/app/cache/...', '<?php \nnamespac...') #1 /app/app/bootstrap.php.cache(2707): Symfony\Component\ClassLoader\ClassCollectionLoader::load(Array, Array, 'classes', false, false, '.php') #2 /app/app/bootstrap.php.cache(2539): Symfony\Component\HttpKernel\Kernel->doLoadClassCache('classes', '.php') #3 /app/app/bootstrap.php.cache(2573): Symfony\Component\HttpKernel\Kernel->boot() #4 /app/web/app.php(28): Symfony\Component\HttpKernel\Kernel->handle(Object(Symfony\Component\HttpFoundation\Request)) #5 {main} thrown in /app/vendor/symfony/symfony/src/Symfony/Component/ClassLoader/ClassCollectionLoader.php on line 280