Node.js VS代码中的Debug Typescript/javscript Mongodb给出错误：ENOTDIR:不是目录，stat

Mac OS 10.12.6，brew v8.5.0中的节点，随brew安装的npm v5.3.0，Visual Studio代码v1.16.1，tsc 2.4.1

我正在尝试运行以下代码段：

import { MongoClient } from 'mongodb';
MongoClient.connect('<url>', (err, db) => console.log(err) );

给出以下错误：

Error: ENOTDIR: not a directory, stat '/Users/alexbjorlig/Documents/SolidFlow/streamRD/node_modules/mongodb-core/index.js/package.json'
at fs.existsSync (fs.js:329:13)
at find_package_json (/Users/alexbjorlig/Documents/SolidFlow/streamRD/node_modules/require_optional/index.js:14:9)
at find_package_json_with_name (/Users/alexbjorlig/Documents/SolidFlow/streamRD/node_modules/require_optional/index.js:34:20)
at require_optional (/Users/alexbjorlig/Documents/SolidFlow/streamRD/node_modules/require_optional/index.js:69:13)
at Object.<anonymous> (/Users/alexbjorlig/Documents/SolidFlow/streamRD/node_modules/mongodb-core/index.js:6:20)
at Module._compile (module.js:569:30)
at Object.Module._extensions..js (module.js:580:10)
at Module.load (module.js:503:32)
at tryModuleLoad (module.js:466:12)
at Function.Module._load (module.js:458:3)

编辑-2:my tscconfig.json:

{
"compileOnSave": true,
"compilerOptions": {
    "target": "es5",
    "lib": [
        "es2016",
        "dom"
    ],
    "module": "commonjs",
    "watch": true,
    "moduleResolution": "node",
    "sourceMap": true
},
"exclude": [
    "node_modules",
    "functions/node_modules",
    "node_modules"
]

}

"dependencies": {
  "mongodb": "^2.2.31"
}

{
"compileOnSave": true,
"compilerOptions": {
    "target": "es5",
    "lib": [
        "es2016",
        "dom"
    ],
    "module": "commonjs",
    "watch": true,
    "moduleResolution": "node",
    "sourceMap": true
},
"exclude": [
    "node_modules",
    "functions/node_modules",
    "node_modules"
]