Actual Behavior

When running the command to dump the sitemap, it is unclear why var/sitemaps does not have the expected sitemap.xml file. The command finishes without errors / exceptions if the configuration for a host is missing.

Expected Behavior

Showing a message that proposes to check the configuration settings, so that it's easier to understand why sitemap.xml is not generated.

Steps to Reproduce

Use the following configuration in app/config/config.yml (leave out the setting default_host: "my test domain here")

sulu_website:
    sitemap:
        dump_dir: %kernel.var_dir%/sitemaps

In the root of your project directory execute:

bin/websiteconsole sulu:website:dump-sitemap

cd var/sitemaps 

sitemap.xml is not generated