使用browser-sync / nodejs部署到heroku“无法打开浏览器”

Question

我继承了一个相当简单的代码库，我试图将其部署到heroku

这是package.json文件的一部分：

...

"engines": {
    "node": "8.1.1",
    "npm": "5.0.3"
  },
  "scripts": {
    "clean": "rimraf dist/{css/*,js/*,images/*}",
    "autoprefixer": "postcss -u autoprefixer -r dist/css/*",
    "scss": "node-sass --output-style compressed -o dist/css src/scss",
    "lint": "eslint src/js || true",
    "lint-scss": "stylelint src/scss/*.scss --syntax scss || true",
    "uglify": "mkdirp dist/js -p && uglifyjs src/js/*.js -m -c -o dist/js/main.min.js",
    "imagemin": "imagemin src/images/* -o dist/images",
    "serve": "browser-sync start --server --files \"dist/css/*.css, dist/js/*.js, **/*.html, !node_modules/**/*.html\"",
    "build:css": "run-s lint-scss scss autoprefixer",
    "build:js": "run-s lint uglify",
    "build:images": "run-s imagemin",
    "build": "run-s build:*",
    "watch:css": "onchange \"src/scss\" -- run-s build:css",
    "watch:js": "onchange \"src/js\" -- run-s build:js",
    "watch:images": "onchange \"src/images\" -- run-s build:images",
    "watch": "run-p serve watch:*",
    "postinstall": "run-s build watch"
  },
  "devDependencies": {
    "autoprefixer": "^9.0.1",
    "browser-sync": "^2.26.3",
    "eslint": "^5.2.0",
    "eslint-config-standard": "^12.0.0",
    "eslint-plugin-import": "^2.14.0",
    "eslint-plugin-node": "^7.0.1",
    "eslint-plugin-promise": "^3.8.0",
    "eslint-plugin-standard": "^3.1.0",
    "imagemin-cli": "^3.0.0",
    "mkdirp": "^0.5.1",
    "node-sass": "^4.9.2",
    "npm-run-all": "^4.1.3",
    "onchange": "^4.1.0",
    "postcss-cli": "^6.0.0",
    "rimraf": "^2.5.4",
    "stylelint": "^9.4.0",
    "uglify-es": "^3.3.10"
  },
  "main": ".eslintrc.js"
}

和我的Procfile：

web: npm run serve

但是当我部署到heroku时 - 构建失败并挂起：

remote:        [Browsersync] Access URLs:
remote:         ---------------------------------------
remote:               Local: http://localhost:3000
remote:            External: http://172.16.113.170:3000
remote:         ---------------------------------------
remote:                  UI: http://localhost:3001
remote:         UI External: http://localhost:3001
remote:         ---------------------------------------
remote:        [Browsersync] Serving files from: ./
remote:        [Browsersync] Watching files...
remote:        [Browsersync] Couldn't open browser (if you are using BrowserSync in a headless environment, you might want to set the open option to false)

如果需要，我可以提供更多细节。

Answer 1

我有同样的问题，要解决：

1. 从package.json中删除"postinstall": "run-s build watch"。
2. 通过添加--port $PORT来修改服务脚本。它应该看起来像这个"serve": "browser-sync start --server --files --port $PORT \"dist/css/*.css, dist/js/*.js, **/*.html, !node_modules/**/*.html\"",
3. 在文件夹的根目录上创建一个Procfile。在Procfile中包含以下内容：web: npm run build watch
4. 您可以通过命令heroku local web在本地运行heroku应用程序或只是部署它，它应该工作。