fish shell prompt not showing symbols correctly

Question

I've installed fish, and the agnoster theme througth oh-my-fish; Now I have the prompt not showing correctly symbols;

Can someone explain what's wrong?

Answer 1

I was using a font not supporting powerline symbols; after installing them, everything's all right;

I've used this guide to install powerline fonts:

https://askubuntu.com/questions/283908/how-can-i-install-and-use-powerline-plugin