novel-app/RuoYi-App/vue.config.js

// vue.config.js
const path = require('path');

module.exports = {
  transpileDependencies: [
    '@vue/composition-api',
    'pinia'
  ],
  configureWebpack: {
    resolve: {
      alias: {
        // 删除这行 ↓
        // 'vue-demi': path.resolve(__dirname, 'src') 
      }
    }
  }
}