three.js升级版本之后出现You may need an appropriate loader to handle this file type？

Question

1、当使用three156版本时，在js中自定义某个类继承 THREE.BufferGeometry 会出现TypeError: Class constructor BufferGeometry cannot be invoked without 'new'
2、如果将three.js的版本改为167时，会出现 ERROR Failed to compile with 1 errors 18:54:20 error in ./node_modules/three/build/three.module.js Module parse failed: Unexpected token (34163:58) You may need an appropriate loader to handle this file type.
这个问题应该怎样解决？

期望提升three的版本之后不要报错且可正常运行