There is no extension able to load the configuration for “web_profiler”

By default, WebProfilerBundle is loaded in dev and test environments only. Find this code snippet in your AppKernel class:

if (in_array($this->getEnvironment(), array('dev', 'test'))) {
    $bundles[] = new Symfony\Bundle\WebProfilerBundle\WebProfilerBundle();
    // ...
}

and append your new environment name to the array:

array('dev', 'test', 'dp')