Question

每当刷新我的一个应用程序路由（即appname.herokuapp.com/about...）时，我都会不断遇到以下错误。每当我刷新根appname.herokuapp.com时，它就很好。该网站是here。

2018-10-08T06:36:36.479880+00:00 app[web.1]: TypeError: res.sendFile is not a function
2018-10-08T06:36:36.479890+00:00 app[web.1]:     at app.get (/app/server.js:9:7)
2018-10-08T06:36:36.479893+00:00 app[web.1]:     at Layer.handle [as handle_request] (/app/node_modules/express/lib/router/layer.js:95:5)
2018-10-08T06:36:36.479896+00:00 app[web.1]:     at next (/app/node_modules/express/lib/router/route.js:137:13)
2018-10-08T06:36:36.479897+00:00 app[web.1]:     at Route.dispatch (/app/node_modules/express/lib/router/route.js:112:3)
2018-10-08T06:36:36.479898+00:00 app[web.1]:     at Layer.handle [as handle_request] (/app/node_modules/express/lib/router/layer.js:95:5)
2018-10-08T06:36:36.479901+00:00 app[web.1]:     at /app/node_modules/express/lib/router/index.js:281:22
2018-10-08T06:36:36.479902+00:00 app[web.1]:     at param (/app/node_modules/express/lib/router/index.js:354:14)
2018-10-08T06:36:36.479903+00:00 app[web.1]:     at param (/app/node_modules/express/lib/router/index.js:365:14)
2018-10-08T06:36:36.479904+00:00 app[web.1]:     at Function.process_params (/app/node_modules/express/lib/router/index.js:410:3)
2018-10-08T06:36:36.479906+00:00 app[web.1]:     at next (/app/node_modules/express/lib/router/index.js:275:10)

我在论坛上四处逛逛，该错误表明我拥有的Express版本过旧，因此我检查了似乎相对最新的版本：

Running bash on ⬢ erc-hackney... up, run.2013 (Free)
1~ $ npm list express
erc-hackney@1.0.0 /app
`-- express@4.16.3

我按照此处的说明进行了设置：https://medium.com/@shubhsharma10/how-to-deploy-angular-6-app-to-heroku-52b73ac7a3aa。

server.js的内容如下：

const express = require('express');
const http = require('http')
const path = require('path');
const app = express();

app.use(express.static(path.join(__dirname, '/dist/erc-hackney/')));

app.get('/', function(req, res) {
  res.sendFile(path.join(__dirname + '/dist/erc-hackney/index.html'));
});

const port = process.env.PORT || 3000;
app.set('port', port);

const server = http.createServer(app);
server.listen(port, () => console.log('Running...'));

package.json的内容如下：

{
  "name": "erc-hackney",
  "version": "1.0.0",
  "scripts": {
    "ng": "ng",
    "start": "node server.js",
    "build": "ng build",
    "postinstall": "ng build --prod",
    "test": "ng test",
    "lint": "ng lint",
    "e2e": "ng e2e"
  },
  "private": true,
  "dependencies": {
    "@angular/animations": "^6.1.0",
    "@angular/cli": "~6.2.4",
    "@angular/common": "^6.1.0",
    "@angular/compiler": "^6.1.0",
    "@angular/compiler-cli": "^6.1.0",
    "@angular/core": "^6.1.0",
    "@angular/forms": "^6.1.0",
    "@angular/http": "^6.1.0",
    "@angular/platform-browser": "^6.1.0",
    "@angular/platform-browser-dynamic": "^6.1.0",
    "@angular/router": "^6.1.0",
    "core-js": "^2.5.4",
    "express": "^4.16.2",
    "rxjs": "~6.2.0",
    "typescript": "~2.9.2",
    "videogular2": "^6.3.0",
    "zone.js": "~0.8.26"
  },
  "devDependencies": {
    "@angular-devkit/build-angular": "~0.8.0",
    "@angular/cli": "~6.2.4",
    "@angular/compiler-cli": "^6.1.0",
    "@angular/language-service": "^6.1.0",
    "@types/core-js": "^2.5.0",
    "@types/jasmine": "~2.8.8",
    "@types/jasminewd2": "~2.0.3",
    "@types/node": "~8.9.4",
    "codelyzer": "~4.3.0",
    "jasmine-core": "~2.99.1",
    "jasmine-spec-reporter": "~4.2.1",
    "karma": "~3.0.0",
    "karma-chrome-launcher": "~2.2.0",
    "karma-coverage-istanbul-reporter": "~2.0.1",
    "karma-jasmine": "~1.1.2",
    "karma-jasmine-html-reporter": "^0.2.2",
    "protractor": "~5.4.0",
    "ts-node": "~7.0.0",
    "tslint": "~5.11.0",
    "typescript": "~2.9.2"
  }
}

我不确定发生了什么。有人可以帮忙吗？

TypeError：res.sendFile不是Heroku服务器上的函数

0 个答案: