nodejs+protobufjs报错

Question

 var express             = require('express');
var app                 = express();
var bodyParse           = require('body-parser');
var cookieParser        = require('cookie-parser') ;
var http = require('http');  
var fs = require("fs");
var  ProtoBuf  = require('protobufjs'),
 userProtoStr = fs.readFileSync('protp/Test.proto').toString(),
 UserModel = ProtoBuf.loadProto(userProtoStr).build('protobuf').UserModel;

app.use(cookieParser()) ;
app.use(bodyParse.urlencoded({extended:false})) ;

项目目录：

怎么会报错呢？请教
如果有直接javascript方式调用protobuf.js的方式最好

Answer 1

文件路径不正确，能找到对应的文件吗