MongoDB E11000 duplicate key error

Question

I have a model that keeps erroring out after the first POST. I\'m creating a scheduling application, which is X number of days, with rooms, and time slots for the rooms.

<

Answer 1

I think You had model for days collection with date attribute which had unique index date_1.

Now You've removed it but collection still has that index.

so that's why it says:

duplicate key error collection: .days index: date_1 dup key: { : null }

it means You're inserting another record where date attribute is also null.

log in to mongodb from console and try to do this:

db.collectionNameHere.getIndexes();
db.collectionNameHere.dropIndex('date_1');
db.collectionNameHere.getIndexes();

p.s. feel free to provide any additional data in Your question or in comments, to help me/us to solve Your issue.

Answer 2

drop the collection and run again