Got duplicate key error dup key: { : undefined }
sonlexqt opened this issue · 2 comments
I have an array field called udids
in Meteor.users
schema, which should contains unique elements. This is how I defined the index using SimpleSchema and Collection2:
new SimpleSchema({
...
udids: {
type: Array,
index: true,
unique: true,
optional: true,
sparse: true,
},
'udids.$': {
type: String,
},
...
})
However, when I start the app, I got this error: E11000 duplicate key error collection: meteor.users index: c2_udids dup key: { : undefined }
. I tried searching for the documents with udids = undefined
in the database: db.users.find({ udids: { $type: 6 } })
but it returns nothing.
Just a wild guess, try clearing indexes and then set them back. (index
, unique
, sparce
, etc set to false
).
from documentation.
IMPORTANT: If you need to change anything about an index, you must first start the app with index: false to drop the old index, and then restart with the correct index properties.