bootstrap-vue模式不显示

环境

dotnet core 2.1.0

"bootstrap-vue": "^2.0.0-rc.11",
"nuxt": "^1.4.1",
"vue": "^2.5.16",
"vue-axios": "^2.1.1",
"vue-router": "^3.0.1",
"vue-server-renderer": "^2.1.8",
"vue-template-compiler": "^2.5.16",
"vue-toasted": "^1.1.24",
"vuex": "^3.0.1",
"vuex-router-sync": "^4.0.1"

我无法弄清楚如何使一个简单的bootstrap-vue模式工作 . modal-sample 组件呈现，按钮可见，但单击按钮时没有任何反应（模态不是"show"） .

但是，在vue dev工具中，我可以看到发出了 show 事件 . 此外，如果我将代码复制并粘贴到bootstrap-vue操场中，它就可以运行，因此必须进行设置 . 不确定它是否重要但它也在dotnet核心环境中运行 .

webpack.config

const VueLoaderPlugin = require('vue-loader/lib/plugin');

  ...

  resolve: {
        extensions: ['.js', '.vue'],
        alias: {
            'vue$': 'vue/dist/vue',
           ...
        }
        ...
        ,
    module: {
        rules: [
            { test: /\.vue$/, include: /ClientApp/, use: 'vue-loader' },
            { test: /\.js$/, 
                include: [/ClientApp/, 
                require.resolve("bootstrap-vue")], 
                use: 'babel-loader' },
            { test: /\.css$/, 
                use: isDevBuild ? ['vue-style-loader', 'style-loader', 'css-loader'] : ExtractTextPlugin.extract({ use: 'css-loader' }) },
            { test: /\.(png|jpg|jpeg|gif|svg)$/, 
                use: 'url-loader?limit=25000' }
        ]
    },
    plugins: [
        new VueLoaderPlugin(),
        new webpack.DllReferencePlugin({
            context: __dirname,
            manifest: require('./wwwroot/dist/vendor-manifest.json')
        })
    ].concat(isDevBuild ? [
        // Plugins that apply in development builds only
        new webpack.SourceMapDevToolPlugin({
            filename: '[file].map', // Remove this line if you prefer inline source maps
            moduleFilenameTemplate: path.relative(bundleOutputDir, '[resourcePath]') // Point sourcemap entries to the original file locations on disk
        })
    ] : [
            // Plugins that apply in production builds only
            new webpack.optimize.UglifyJsPlugin(),
            new ExtractTextPlugin({use: 'site.css', fallback: 'vue-style-loader'})
        ])
}];

app-root.vue

import Swapshift from './modal-sample'
  Vue.component('modal-sample', Swapshift);

modal-sample.vue

<template>
    <div style="margin-top: 20px; padding: 10px;">
      <b-button variant="primary" v-b-modal.newSwapShiftModal>New Swap Shift</b-button>
      <b-modal id="newSwapShiftModal" title="New Swap Edit" >
        <div class="d-block text-center">
            <h3>Hello From My Modal!</h3>
        </div>
      </b-modal>
    </div>
 </template>

 <script>
   import { mapActions, mapState } from 'vuex'
   import bModal from 'bootstrap-vue/es/components/modal/modal'
   import bModalDirective from 'bootstrap-vue/es/directives/modal/modal' 

 export default {
    components: { bModal },
    directives: { bModalDirective },
    data() {
       return {
          swapshift: {
            id: 1,
            status: {
                id: 1,
                description: 'Requested'
            }
          }
        }
    },
    computed: {   
    },
    methods: {
    },
    async created() {
       console.log('...in modal-sample1');
    }
  }
 </script>