我已按照https://neo4j.com/developer/language-guides/上的说明操作，并在Windows操作系统上通过npm命令成功安装了neo4j驱动程序。但是当我运行示例代码时，我遇到了以下错误：
module.js:538
throw err;
^
Error: Cannot find module 'neo4j-driver'
at Function.Module._resolveFilename (module.js:536:15)
at Function.Module._load (module.js:466:25)
at Module.require (module.js:579:17)
at require (internal/module.js:11:18)
at Object.<anonymous> (c:\NodejsEngine\Getstarted\addnodetoneo4j.js:2:16)
at Module._compile (module.js:635:30)
at Object.Module._extensions..js (module.js:646:10)
at Module.load (module.js:554:32)
at tryModuleLoad (module.js:497:12)
at Function.Module._load (module.js:489:3)