MongoDB not returning the Data

Question

I created a database using MongoDB named mydb. Then I created a collection called coll3

use mydb
db.coll3.insert({"1":"HI"})

When I do this

db.coll3.find()

I get this error

Couldn't retrieve documents

java.lang.IllegalStateException cannot be cast to t3.utils.document.g

Answer 1

You need to pass the query object (an empty object to return all documents) to the find function:

db.coll3.find({})

Refer to the MongoDB documentation.