node.js - multer v1.3.0上传报500错误

我用的express框架，尝试用multer中间件做上传，原来是最基础的上传，就是
var upload = multer({ dest: 'uploads/' })，但是我发现这上传上去的文件都是没有后缀名的16位随机字符串，我的要求是要规范化的文件命名，所以我用了multer.diskStorage对文件进行更多的操作下面是我的代码：
`var express = require('express');
var router = express.Router();
var multer = require('multer');

//设置保存路径
//var upload = multer({ dest: 'uploads/' })

/ GET home page. /
router.get('/', function(req, res, next) {
res.render('index', { title: 'Express' });
});

var storage = multer.diskStorage({

destination: function (req, file, cb) {
    cb(null, '/uploads');
},
filename: function (req, file, cb) {
    cb(null, file.fieldname+"-"+Date.now());
}

});

var upload = multer({ storage: storage });

router.post('/upload', upload.single('image')), function(req, res, next){

var image=req.file.path;
res.send('index', { title : 'Express' ,image:image});

}

module.exports = router;
`
我感觉这应该是最基本的demo了，但是就是报500错误，报错如下：

POST /upload 500 16.841 ms - 1278
Error: Failed to lookup view "error" in views directory "D:\wx_bandu\views"
    at EventEmitter.render (D:\wx_bandu\node_modules\._express@4.15.3@express\lib\application.js:580:17)
    at ServerResponse.render (D:\wx_bandu\node_modules\._express@4.15.3@express\lib\response.js:971:7)
    at D:\wx_bandu\app.js:45:7
    at Layer.handle_error (D:\wx_bandu\node_modules\._express@4.15.3@express\lib\router\layer.js:71:5)
    at trim_prefix (D:\wx_bandu\node_modules\._express@4.15.3@express\lib\router\index.js:315:13)
    at D:\wx_bandu\node_modules\._express@4.15.3@express\lib\router\index.js:284:7
    at Function.process_params (D:\wx_bandu\node_modules\._express@4.15.3@express\lib\router\index.js:335:12)
    at next (D:\wx_bandu\node_modules\._express@4.15.3@express\lib\router\index.js:275:10)
    at Layer.handle_error (D:\wx_bandu\node_modules\._express@4.15.3@express\lib\router\layer.js:67:12)
    at trim_prefix (D:\wx_bandu\node_modules\._express@4.15.3@express\lib\router\index.js:315:13)

我看了网上很多资料,github上也看了，感觉就是找不到原因，求大神指点迷津

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node.js - multer v1.3.0上传报500错误

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