$project lab, getting error "A pipeline stage specification object must contain exactly one field."

MongoDB University M121: The MongoDB Aggregation Framework
#1

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#2

Hi @Ramone_Granston,

I think you are missing a { before the $project.

I suggest you use the Aggregation Pipeline Builder in MongoDB Compass to avoid all this mess :wink: !

Cheers,
Maxime.

#3

How do i connect to the database with compass, the connection string I used in the command line isn’t working

#4

Could you provide just a bit more information about how it isn’t working?

#5

wheni run the commands from the lab I don’t get a figure I get the error in the pic above

#6

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that the error message i get

#7

The word mongosh and the double quotes is not part of the connection string.

The connection string is what it is inside the double quotes that starts with mongodb://.

#8

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i got another error

#9

Try with the modern version which is:

mongodb+srv://m121:aggregations@cluster0-jxeqq.mongodb.net/aggregations
1 Like
#10

it worked, thanks…appreciate the assistance

2 Likes
#11

How do i load the validatelab 2 file in compass

#12

Hi @Ramone_Granston, the steps to load are mentioned in the Lectures and Labs themselves.

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In case you have any doubts, please feel free to reach out to us.

Thanks and Regards.
Sourabh Bagrecha,
MongoDB

#13