找不到模塊 'hbs'，express-handlebars

Question

我正在嘗試使用 express-handlebars 視圖引擎進行 express，但我不斷收到以下錯誤：

Error: Cannot find module 'hbs'
    at Function.Module._resolveFilename (module.js:538:15)
    at Function.Module._load (module.js:468:25)
    at Module.require (module.js:587:17)
    at require (internal/module.js:11:18)
    at new View (C:\Users\WilPrim\Desktop\node-app\node_modules\express\lib\view.js:81:14)
    at Function.render (C:\Users\WilPrim\Desktop\node-app\node_modules\express\lib\application.js:570:12)
    at ServerResponse.render (C:\Users\WilPrim\Desktop\node-app\node_modules\express\lib\response.js:1008:7)
    at C:\Users\WilPrim\Desktop\node-app\routes\routes.js:5:6
    at Layer.handle [as handle_request] (C:\Users\WilPrim\Desktop\node-app\node_modules\express\lib\router\layer.js:95:5)
    at next (C:\Users\WilPrim\Desktop\node-app\node_modules\express\lib\router\route.js:137:13)

這是我的代碼：

const express = require("express");
const bodyParser = require("body-parser");
const hbs = require("express-handlebars");
const router = require("./routes/routes");

//set up express app
var app = express();

app.use(bodyParser.json());

app.set('view engine', 'hbs');
app.set('views', './views');
app.set('view options', {layout: './layouts/layout'});

app.use(router);

Answer 1

根據express-handlebars文檔，您必須手動設置和注冊視圖引擎：

var express = require('express');
var exphbs  = require('express-handlebars');

var app = express();
var hbs = exphbs.create({ /* config */ });

// Register `hbs.engine` with the Express app.
app.engine('handlebars', hbs.engine);
app.set('view engine', 'handlebars');

// ...still have a reference to `hbs`, on which methods like `loadPartials()`
// can be called.

在文檔中再往下看一點，看起來您仍然可以使用.hbs擴展名和一些配置：

var express = require('express');
var exphbs  = require('express-handlebars');

var app = express();

app.engine('.hbs', exphbs({extname: '.hbs'}));
app.set('view engine', '.hbs');

Answer 2

使用命令sudo npm link hbs

Answer 3

您可能將主文件夾命名為“express”，只需更改文件夾名稱，刪除“package.json”並再次嘗試“npm install”，然后“npm install express”“npm install hbs”

Answer 4

在終端上安裝這個模塊 --> npm i hbs

Answer 5

多次嘗試 npm install 和 npm audit fix，然后在 ex 之后朗姆酒

Answer 6

obtuve el mismo problema.. y lo resolví instalando el hbs: npm i hbs