error: 'TypeError: Cannot access member \'db\' of undefined'

[xxyyzz2050]

node data_generator.js

{ error: 'TypeError: Cannot access member \'db\' of undefined',
  error_code: 'FunctionExecutionError',
  link: 'xxx' }

[MongoCaleb]

@xxyyzz2050 this sounds like an error within the stitch function you created, and is often seen when the reference to the atlas service is not set up correctly. If you are still blocked, please post your function here and I'll take a look.

[ritikadash]

@MongoCaleb TypeError: Cannot access member 'aggregate' of undefined
How do I solve this error in mongodb??