我有一個index.ts文件可以導出我所有的助手函數。為了以更方便的方式導入它們，我想使用export asTypeScript 3.8 的功能。所以這是我的代碼：// index.tsexport * from './logging';export * as TypeHelper from './types';export * as ValidationHelper from './validation';這是我在運行時遇到的錯誤npm run serve：ERROR  Failed to compile with 1 errors                                                                                                                                               13:44:55error  in ./src/services/helpers/index.tsModule parse failed: Unexpected token (2:9)File was processed with these loaders: * ./node_modules/cache-loader/dist/cjs.js * ./node_modules/@vue/cli-plugin-typescript/node_modules/ts-loader/index.js * ./node_modules/eslint-loader/index.jsYou may need an additional loader to handle the result of these loaders.| export * from './logging';> export * as TypeHelper from './types';| export * as ValidationHelper from './validation';|  @ ./src/plugins/router/index.ts 3:0-41 92:8-11 98:8-11 @ ./src/main.ts @ multi (webpack)-dev-server/client?http://192.168.179.4:8080&sockPath=/sockjs-node (webpack)/hot/dev-server.js ./src/main.tsType checking in progress...No type errors foundVersion: typescript 3.9.7我怎樣才能解決這個問題？