Fontawesome错误“找不到一个或多个图标”

我跟着 https://fontawesome.com/how-to-use/on-the-web/using-with/vuejs 是的。

但是当你像这样使用它时:

import { library } from '@fortawesome/fontawesome-svg-core'
import { faBars } from '@fortawesome/free-solid-svg-icons'
import { faTwitter, faFacebook, faStackOverflow, faGithub } from '@fortawesome/free-brands-svg-icons'
import { FontAwesomeIcon } from '@fortawesome/vue-fontawesome'

...

library.add(faBars, faTwitter, faFacebook, faStackOverflow, faGithub )
Vue.component('font-awesome-icon', FontAwesomeIcon)

...

<font-awesome-icon icon="twitter" class="icon alt"/>

得到了:

找不到一个或多个图标{前缀:“fas”,图标名:“twitter”}