Validate the Hue Installation
Ensure that Hue is properly installed.
To view the current configuration of your Hue Server, select About > Configuration or http://hue.server:8000/dump_config.
Also to make sure that Hue Server was configured properly, select About > Check for misconfiguration or http://hue.server:8000/debug/check_config. If there was any potential misconfiguration detected, then you need to fix this and to restart Hue.