【报Bug】typescript下, uniapp生命周期钩子函数无法触发

[内容]

Environment Info:  

  System:  
    OS: macOS 10.14.2  
    CPU: (8) x64 Intel(R) Core(TM) i7-4870HQ CPU @ 2.50GHz  
  Binaries:  
    Node: 10.12.0 - /var/folders/yc/5cmmwchj5z18t17bhwk4ls5c0000gn/T/yarn--1549163575327-0.4807895293962383/node  
    Yarn: 1.13.0 - /var/folders/yc/5cmmwchj5z18t17bhwk4ls5c0000gn/T/yarn--1549163575327-0.4807895293962383/yarn  
    npm: 6.5.0 - /usr/local/bin/npm  
  Browsers:  
    Chrome: 71.0.3578.98  
    Firefox: 64.0  
    Safari: 12.0.2  
  npmPackages:  
    @dcloudio/types: * => 0.0.2   
    @dcloudio/uni-app-plus-nvue:  0.0.1   
    @dcloudio/uni-cli-shared: * => 0.2.8   
    @dcloudio/uni-h5: * => 0.2.2   
    @dcloudio/uni-mp-alipay: * => 0.0.8   
    @dcloudio/uni-mp-baidu: * => 0.0.7   
    @dcloudio/uni-mp-weixin: * => 0.0.5   
    @dcloudio/vue-cli-plugin-hbuilderx: ^0.3.2 => 0.3.5   
    @dcloudio/vue-cli-plugin-uni: ^0.9.20 => 0.9.29   
    @dcloudio/webpack-uni-mp-loader: * => 0.3.2   
    @dcloudio/webpack-uni-pages-loader: * => 0.2.5   
    @vue/babel-helper-vue-jsx-merge-props:  1.0.0-beta.2   
    @vue/babel-plugin-transform-vue-jsx:  1.0.0-beta.2   
    @vue/babel-preset-app:  3.4.0   
    @vue/babel-preset-jsx:  1.0.0-beta.2   
    @vue/babel-sugar-functional-vue:  1.0.0-beta.2   
    @vue/babel-sugar-inject-h:  1.0.0-beta.2   
    @vue/babel-sugar-v-model:  1.0.0-beta.2   
    @vue/babel-sugar-v-on:  1.0.0-beta.2   
    @vue/cli-overlay:  3.4.0   
    @vue/cli-plugin-babel: 3.3.0 => 3.3.0   
    @vue/cli-plugin-typescript: ^3.3.0 => 3.4.0   
    @vue/cli-service: ^3.4.0 => 3.4.0   
    @vue/cli-shared-utils:  3.4.0   
    @vue/component-compiler-utils:  2.5.2   
    @vue/preload-webpack-plugin:  1.1.0   
    @vue/web-component-wrapper:  1.2.0   
    mpvue-page-factory:  1.0.1   
    mpvue-template-compiler:  1.0.13   
    vue: ^2.5.21 => 2.5.22 (2.5.22)  
    vue-class-component: ^6.3.2 => 6.3.2   
    vue-hot-reload-api:  2.3.1   
    vue-loader:  15.6.2   
    vue-property-decorator: ^7.2.0 => 7.3.0   
    vue-router:  3.0.1   
    vue-style-loader:  3.1.2 (3.1.2)  
    vue-template-compiler: ^2.5.21 => 2.5.22   
    vue-template-es2015-compiler:  1.8.2   
    vuex: ^3.0.1 => 3.1.0   
    weex-vue-loader:  0.7.0   
  npmGlobalPackages:  
    @vue/cli: 3.4.0

import { Component, Vue } from 'vue-property-decorator';  

@Component()  
export default class Index extends Vue {  

  onLoad() {  
    console.info('onLoad')  
  }  
}

IDE运行环境说明