Installing gui version error can you please help

Mycroft core is needed follow the git install method, git clone mycroft core to your home folder and run dev setup script

I have installed mycroft and it is working now but when I ask about the weather it shows the date and the homescreen is not working. Perhaps that skill is not installed? If yes, how do I install it?

Also I changed the wake word on the mycroft.ai devices settings to Christopher but it only listens to hey mycroft