Custom icons doesn't display, instead see a question mark

My steps:

1) npm install react-native-vector-icons --save 2) react-native link 3) Put my .ttf in a ./resources/fonts 4) added in package.json : "rnpm": { "assets": [ "resources/fonts" ] } 5) In the terminal: react-native link 6) Added config.json in the ./src) 7) in the code:

import { createIconSetFromFontello } from 'react-native-vector-icons';
import fontelloConfig from './config.json';
const Icon = createIconSetFromFontello(fontelloConfig);
...
export default () =>  <Icon name="iconPinYoga" size={80} color="#bf1313" />; 

1. Clean and Rebuild the project

after that I see this:

[Luckygirlllll]

I found the solution, so in custom font the name of the icon is “icon-pin-yoga”, but in the code name of the icon should be “pinYoga”

[rafidamr]

I get it for material icon “data_usage” by naming it “data-usage” in my code (using dash instead of underscore). But for icon “list_alt” this naming doesnt work. I guess there is a consistency problem in naming?