How to integrate exist project with jsconfig

enter image description hereI was about to integrate jsconfig.json with my existing project for benefitting from its baseurl option.As the template showed by vs-code,I added a jsconfig.json to my client folder(which has its own node_modules, completely separated from server).But seems like it doesn't work.Meanwhile, it shows an error at the beginning of the jsconfig file client/node_modules/harmony-reflect/index' not found, but when I yarn add harmony-reflect to client modules,the error still exists.Here is the code:

{
  "compilerOptions": {
    "baseUrl": ".",
    "paths": {
      "components/*": ["./src/js/components/*"]
    },
    "module": "es6",
    "target": "es2020"
  },
  "exclude": ["node_modules"]
}

Could you guys help me with this?Thanks!