Another Assertion Failed

[canni]

Here's stack trace:

[ErrorException]            
assert(): Assertion failed  



Exception trace:
 () at phar:///usr/local/bin/composer.phar/src/Composer/DependencyResolver/Solver.php:1481
 Composer\Util\ErrorHandler::handle() at n/a:n/a
 assert() at phar:///usr/local/bin/composer.phar/src/Composer/DependencyResolver/Solver.php:1481
 Composer\DependencyResolver\Solver->analyze() at phar:///usr/local/bin/composer.phar/src/Composer/DependencyResolver/Solver.php:1355
 Composer\DependencyResolver\Solver->setPropagateLearn() at phar:///usr/local/bin/composer.phar/src/Composer/DependencyResolver/Solver.php:1392
 Composer\DependencyResolver\Solver->selectAndInstall() at phar:///usr/local/bin/composer.phar/src/Composer/DependencyResolver/Solver.php:1760
 Composer\DependencyResolver\Solver->runSat() at phar:///usr/local/bin/composer.phar/src/Composer/DependencyResolver/Solver.php:1019
 Composer\DependencyResolver\Solver->solve() at phar:///usr/local/bin/composer.phar/src/Composer/Installer.php:211
 Composer\Installer->run() at phar:///usr/local/bin/composer.phar/src/Composer/Command/UpdateCommand.php:63
 Composer\Command\UpdateCommand->execute() at phar:///usr/local/bin/composer.phar/vendor/symfony/console/Symfony/Component/Console/Command/Command.php:237
 Symfony\Component\Console\Command\Command->run() at phar:///usr/local/bin/composer.phar/vendor/symfony/console/Symfony/Component/Console/Application.php:193
 Symfony\Component\Console\Application->doRun() at phar:///usr/local/bin/composer.phar/src/Composer/Console/Application.php:70
 Composer\Console\Application->doRun() at phar:///usr/local/bin/composer.phar/vendor/symfony/console/Symfony/Component/Console/Application.php:106
 Symfony\Component\Console\Application->run() at phar:///usr/local/bin/composer.phar/src/Composer/Console/Application.php:59
 Composer\Console\Application->run() at phar:///usr/local/bin/composer.phar/bin/composer:9
 require() at /usr/local/bin/composer.phar:15


update [--prefer-source] [--dry-run] [--no-install-recommends] [--install-suggests]

And composer.json

{
    "require": {
        "knplabs/rad-bundle": "dev-master",
        "cleverit/debug-shell-bundle": "1.0.0",
    "mopa/bootstrap-bundle": "dev-master",
    "knplabs/knp-paginator-bundle": "dev-master",
    "knplabs/knp-menu-bundle": "dev-master",
    "craue/formflow-bundle": "dev-master",
    "twitter/bootstrap": "master"
},
"repositories": [
    {
        "type": "package",
        "package": {
            "version": "master",
            "name": "twitter/bootstrap",
            "source": {
                "url": "https://github.com/twitter/bootstrap.git",
                "type": "git",
                "reference": "master"
            },
            "dist": {
                "url": "https://github.com/twitter/bootstrap/zipball/master",
                "type": "zip"
             }
        }
    }
]
}

[RRStoyanov]

Same here. My composer.json is pretty big, so I don't want to paste it, but I can say that I didn't have problem to run the install command, but after I run update, than I see the assert(): Assertion failed error.

[taxido]

I have the same problem.

Problem is in line:
"craue/formflow-bundle": "dev-master",

[stof]

@naderman Can you check it ? It seems like an assertion fails when the dependencies cannot be solved instead of throwing a SolverException

[Seldaek]

The solver just received a handful of fixes that most likely addressed this issue. Since it is pretty hard to reproduce those assert() bugs as they usually only occured on update, and we can not install your dependencies to an older state to try an update, I am closing this issue. Please run composer.phar self-update and try again. If you encounter another assert() error or any other issue, feel free to report a new issue (or ask that we reopen this one if it is not fixed).