three.js使用联合材质老是报错

最近在学THREE.JS,在联合材质这一块不知为何老是报错，

**
three.js:36232 THREE.SceneUtils has been moved to /examples/jsm/utils/SceneUtils.js**

即便是在引入three.JS之后再单独引入了SceneUtils.js文件依旧如此。看了下SceneUtils.js文件中的import语句，因为我调整过文件路径，所以我也修改过了，依旧没能解决问题。求解，谢谢大家啦

  var sphereGeometry=new THREE.SphereGeometry(4,20,20);
 var sphereMaterial=new THREE.MeshDepthMaterial();
 var colorMaterial=new THREE.MeshBasicMaterial({
        color:0xeeeeee,
        transparent:true,
        blending:THREE.MultiplyBlending
    })
  var sphere2=new THREE.SceneUtils.createMultiMaterialObject(sphereGeometry,[sphereMaterial,colorMaterial]);
    sphere2.children[1].scale(0.99,0.99,0.99);