The media could not be loaded, either because the server or network failed or because the format is

this can happen if the resource is local
requires the resource to be written to the require () method

 
sources: [{
      type: "video/mp4",
      src: require("../../assets/video/非凡 杰出 不同凡响.mp4") 
    }],
    poster: require("../../assets/images/胶片bg001.png"),

must add require ();