parcel-bundler 出现编译错误

vue.runtime.esm.js:619 [Vue warn]: You are using the runtime-only build of Vue where the template compiler is not available. Either pre-compile the templates into render functions, or use the compiler-included build.

(found in <Root>)

new Vue({
  el: "#app"
  render: h => h(Button) //加上要render 
});