An error occurred when using username root to add MongoDB data source.
When adding the MongoDB data source, you must use the username created by the database where the table you are required to synchronize resides, instead of the root.
For example, to import the name table, which is in the test database, enter test as the database name.
Enter the username created in a specific database, instead of root. For example, if the test database is specified, then use the account created in the test database as the username.