/routes/AggFramework.js issue with bson require

[fullaware]

internal/modules/cjs/loader.js:550
    throw err;
    ^

Error: Cannot find module 'bson'
    at Function.Module._resolveFilename (internal/modules/cjs/loader.js:548:15)
    at Function.Module._load (internal/modules/cjs/loader.js:475:25)
    at Module.require (internal/modules/cjs/loader.js:598:17)
    at require (internal/modules/cjs/helpers.js:11:18)
    at Object.<anonymous> (/Users/bnewell/projects/MongoDB_AGeneralPurposeDB/routes/aggframework.js:4:10)
    at Module._compile (internal/modules/cjs/loader.js:654:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:665:10)
    at Module.load (internal/modules/cjs/loader.js:566:32)
    at tryModuleLoad (internal/modules/cjs/loader.js:506:12)
    at Function.Module._load (internal/modules/cjs/loader.js:498:3)

[fullaware]

Commenting line allows app to proceed
// var BSON=require('bson');

[fullaware]

New error after commenting out BSON

Listening on port 3000
/Users/bnewell/projects/MongoDB_AGeneralPurposeDB/node_modules/mongodb/lib/utils.js:132
      throw err;
      ^

Error: Error creating index: cyclic dependency detected
    at /Users/bnewell/projects/MongoDB_AGeneralPurposeDB/node_modules/connect-mongodb-session/index.js:58:21
    at err (/Users/bnewell/projects/MongoDB_AGeneralPurposeDB/node_modules/mongodb/lib/utils.js:415:14)
    at session.endSession (/Users/bnewell/projects/MongoDB_AGeneralPurposeDB/node_modules/mongodb/lib/utils.js:399:27)
    at ClientSession.endSession (/Users/bnewell/projects/MongoDB_AGeneralPurposeDB/node_modules/mongodb/node_modules/mongodb-core/lib/sessions.js:72:41)
    at executeCallback (/Users/bnewell/projects/MongoDB_AGeneralPurposeDB/node_modules/mongodb/lib/utils.js:397:17)
    at err (/Users/bnewell/projects/MongoDB_AGeneralPurposeDB/node_modules/mongodb/lib/utils.js:415:14)
    at executeCallback (/Users/bnewell/projects/MongoDB_AGeneralPurposeDB/node_modules/mongodb/lib/utils.js:404:25)
    at handleCallback (/Users/bnewell/projects/MongoDB_AGeneralPurposeDB/node_modules/mongodb/lib/utils.js:128:55)
    at /Users/bnewell/projects/MongoDB_AGeneralPurposeDB/node_modules/mongodb/lib/db.js:1057:25
    at executeWrite (/Users/bnewell/projects/MongoDB_AGeneralPurposeDB/node_modules/mongodb/node_modules/mongodb-core/lib/wireprotocol/3_2_support.js:82:5)

[fullaware]

Issue was on my end. Still have to keep BSON commented out though.