Syntax Error: Thread Loader (Worker 0) The “from“ argument must be of type...

打包项目失败，错误提示

Syntax Error: Thread Loader (Worker 0) The “from“ argument must be of type string. Received undefined

百度了据说是worker-loader 与 thread-loader冲突导致。

解决方案： vue.config.js

module.exports = {
    ...
    parallel: false,
};

重新执行打包命令就ok了。