在create-react-app创建的项目使用yarn link, yarn start 报错

[xiayuegit]

/Users/xxxx/resource/project/front-end/github/react/packages/react/index.js:11
export type StatelessFunctionalComponent<
^^^^^^

SyntaxError: Unexpected token export
at Module._compile (internal/modules/cjs/loader.js:721:23)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:787:10)
at Module.load (internal/modules/cjs/loader.js:653:32)
at tryModuleLoad (internal/modules/cjs/loader.js:593:12)
at Function.Module._load (internal/modules/cjs/loader.js:585:3)
at Module.require (internal/modules/cjs/loader.js:690:17)
at require (internal/modules/cjs/helpers.js:25:18)
at Object. (/Users/huanghao/resource/project/front-end/demo/a-react-demo/node_modules/react-scripts/scripts/start.js:52:15)
at Module._compile (internal/modules/cjs/loader.js:776:30)
at Object.Module._extensions..js (internal/modules/cjs/loader.js:787:10)
error Command failed with exit code 1.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.

[wellssu0]

使用 yarn build react/index,react/jsx,react-dom/index,scheduler --type=NODE 这个打包（官网上的）