[mpvue-loader] need "fileExt" option in file "build/vue-loader.conf.js"，init a new project and copy

需要
webpack.base.conf.js -> module->rules 添加
{
test: /.tsx?$/,
// include: [resolve(‘src’), resolve(‘test’)],
exclude: /node_modules/,
use: [
{
loader: ‘babel-loader’,
},
{
loader: ‘mpvue-loader’,
options: Object.assign({ checkMPEntry: true }, vueLoaderConfig)
},
{
// loader: ‘ts-loader’,
loader: ‘awesome-typescript-loader’,
options: {
// errorsAsWarnings: true,
useCache: true,
}
}
]
}