Node.js Heroku构建被拒绝-NodeJS

我正在努力为我的NodeJS应用程序在Heroku上成功执行构建。该应用程序在本地运行，当我将其推送到Heroku时，它运行良好。但随后的推送被Heroku拒绝。这就是我得到的：

    Counting objects: 15, done.
Delta compression using up to 8 threads.
Compressing objects: 100% (12/12), done.
Writing objects: 100% (15/15), 1.34 KiB | 0 bytes/s, done.
Total 15 (delta 7), reused 0 (delta 0)
remote: Compressing source files... done.
remote: Building source:
remote: 
remote: -----> Node.js app detected
remote: 
remote: -----> Creating runtime environment
remote:        
remote:        NPM_CONFIG_LOGLEVEL=error
remote:        NPM_CONFIG_PRODUCTION=true
remote:        NODE_VERBOSE=false
remote:        NODE_ENV=production
remote:        NODE_MODULES_CACHE=true
remote: 
remote: -----> Installing binaries
remote:        engines.node (package.json):  7.10.0
remote:        engines.npm (package.json):   5.3.0
remote:        
remote:        Resolving node version 7.10.0...
remote:        Downloading and installing node 7.10.0...
remote:        Bootstrapping npm 5.3.0 (replacing 4.2.0)...
remote:        npm 5.3.0 installed
remote: 
remote: -----> Restoring cache
remote:        Loading 2 from cacheDirectories (default):
remote:        - node_modules
remote:        - bower_components (not cached - skipping)
remote: 
remote: -----> Building dependencies
remote:        Installing node modules (package.json)
remote:        npm ERR! Cannot read property '0' of undefined
remote:        
remote:        npm ERR! A complete log of this run can be found in:
remote:        npm ERR!     /app/.npm/_logs/2017-07-28T16_01_18_490Z-debug.log
remote: 
remote: -----> Build failed
remote:        
remote:        We're sorry this build is failing! You can troubleshoot common issues here:
remote:        https://devcenter.heroku.com/articles/troubleshooting-node-deploys
remote:        
remote:        If you're stuck, please submit a ticket so we can help:
remote:        https://help.heroku.com/
remote:        
remote:        Love,
remote:        Heroku
remote:        
remote:  !     Push rejected, failed to compile Node.js app.
remote: 
remote:  !     Push failed

我真的搞不懂什么是无法读取未定义属性“0”的意思

编辑：这里是package.json，它不会在本地给我任何问题

{
  "name": "truffle-init-webpack",
  "description": "Frontend example using truffle v3",
  "scripts": {
    "lint": "eslint ./",
    "build": "webpack",
    "dev": "webpack-dev-server"
  },
  "engines": {
    "node": "7.10.0",
    "npm": "5.3.0"
  },
  "author": "Douglas von Kohorn",
  "license": "MIT",
  "dependencies": {
    "babel-cli": "^6.22.2",
    "babel-core": "^6.22.1",
    "babel-eslint": "^6.1.2",
    "babel-loader": "^6.2.10",
    "babel-plugin-transform-runtime": "^6.22.0",
    "babel-preset-env": "^1.1.8",
    "babel-preset-es2015": "^6.22.0",
    "babel-register": "^6.22.0",
    "copy-webpack-plugin": "^4.0.1",
    "css-loader": "^0.26.1",
    "eslint": "^3.14.0",
    "eslint-config-standard": "^6.0.0",
    "eslint-plugin-babel": "^4.0.0",
    "eslint-plugin-mocha": "^4.8.0",
    "eslint-plugin-promise": "^3.0.0",
    "eslint-plugin-standard": "^2.0.0",
    "html-webpack-plugin": "^2.28.0",
    "json-loader": "^0.5.4",
    "style-loader": "^0.13.1",
    "truffle-contract": "^1.1.6",
    "web3": "^0.18.2",
    "webpack": "^2.2.1",
    "webpack-dev-server": "^2.3.0"
  }
}

---

错误似乎在您的package.json中。 请参阅下面的链接

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看来NPM@5.3.0如果已损坏，请尝试降级到5.2

错误似乎在您的package.json中。 请参阅下面的链接

---

看来NPM@5.3.0已损坏尝试降级到5.2

我已将其添加到问题中构建依赖项的下一步是heroku开始下载依赖项并记录它。它不存在于您的日志中。你能在你的本地目录下运行npm安装并分析它是否工作正常。这个.npm/_logs/2017-07-28T16_01_18_490Z-debug.log说了什么？我问了很多问题。你能告诉我Git的情况吗。你查到你的最新代码了吗？抓到了！非常感谢！我在package中将5.3.0更改为5.2.0。我已经将其添加到问题中。构建依赖项的下一步是heroku开始下载依赖项并记录它。它不存在于您的日志中。你能在你的本地目录下运行npm安装并分析它是否工作正常。这个.npm/_logs/2017-07-28T16_01_18_490Z-debug.log说了什么？我问了很多问题。你能告诉我Git的情况吗。你查到你的最新代码了吗？抓到了！非常感谢！我在package.json中将5.3.0更改为5.2.0