我正努力在我的NodeJS应用程序上成功执行Heroku构建。该应用程序在本地工作，当我将其推送到Heroku一旦它工作得很好。但后来的推动被Heroku拒绝了。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
我真的无法弄清Cannot read property '0' of undefined的含义。
编辑：这是package.json（在本地没有给我任何问题）
{
"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"
}
}
答案 0 :(得分：4)