提出[Bug Report]： jsfiddle.net/masongzhi/t…
因为vue-i18n在beforeDestroy中会注销this.$t，所以在beforeDestroy不能调用this.$t
beforeDestroy (): void {
if (!this._i18n) { return }
if (this._subscribing) {
this._i18n.unsubscribeDataChanging(this)
delete this._subscribing
}
if (this._i18nWatcher) {
this._i18nWatcher()
delete this._i18nWatcher
}
if (this._localeWatcher) {
this._localeWatcher()
delete this._localeWatcher
}
this._i18n = null
}
复制代码可以将注销操作放在this.$nextTick中执行
PR：github.com/kazupon/vue…
注意：这个解决方案只能解决同步代码，如果在异步代码中还是会报错，具体解决方法是引入Vue注册的i18n，调用i18n.t替代this.$t