Cannot create an index

[erassynathingo]

Hi, I cannot add anything to my database using mongoose.. its gives me this error
"Unhandled rejection MongoError: Cannot create an index on collection.name with an insert to 59bfc8c4970199306ad8914f_collection.system.indexes"
and this "E11000 duplicate key error collection: collection.name index: id"

I am pretty sure there is nothing in the database, i even deleted the collection..same error. please help

using mongoose 4.12.6 & node v8.6.0

[vkarpov15]

Can you please provide more substantial code samples and error stack traces? Better yet, please just follow the issue template.

[erassynathingo]

attached my basic CRUD functions, model and model class...and the error stack trace image

[vkarpov15]

Which version of mongodb are you using?

[dworrad]

Same issue here... I first got this issue when switching to Atlas

[dworrad]

I believe if you remove the unique: true from your _id field the error will go away.

[vkarpov15]

Yeah @dworrad is right. The issue is that you set unique: true on _id. You shouldn't do that, it'll cause index builds to fail