/**
  * Install application using Composer create-project.
  *
  * @return boolean True if successful
  * @throws Cake\Core\Exception\Exception
  */
 protected function _composerInstall()
 {
     Log::Debug("Composer installing " . $this->options['framework_human']);
     if (!$this->Execute->composerCreateProject($this->options['source'], $this->options['path'])) {
         throw new Exception("Error composer installing.");
     }
     return true;
 }