mongodb-error validating settings: only one positional argument is allowed

问题

I just moved to a new laptop which had mongo 3.0.0 I believe. On the new laptop I have mongo 3.0.4. and trying the script that was working on the old laptop is giving me errors. This line is giving me the error.

mongoimport --host localhost \
            -db roudy123_q \
            -collection LebaneseAmericanUniversity\(Lebanon\).json \
            --file LebaneseAmericanUniversity\(Lebanon\).json \
            --jsonArray

error validating settings: only one positional argument is allowed.

I googled the error and the only relevant result was the source code of mongoimport. So I guess it has something to do with the new version.

回答1:

Just a wild guess...

... but the various long options should be specified using --, not -:

mongoimport --host localhost \
            --db roudy123_q \
            --collection LebaneseAmericanUniversity\(Lebanon\).json \
            --file LebaneseAmericanUniversity\(Lebanon\).json \
            --jsonArray

Maybe this particular version of mongoimport is more punctilious about that, and will treat -db ... -collection ... as positional arguments rather than keyword arguments ?

回答2:

This error can also occur if white spaces are given without a "\" in the path to the file . Ex: This wont work:

But this would work :

回答3:

If you get this error while inserting fields with --fields, the probable reason might be you are using spaces to do that.

Both -f and --fields should work in those cases Using Mongo Version 3.0.6

mongoimport --db logs --collection action_logs --type tsv -f updated_at ,transaction_time ,origin  --file parsed.tsv
mongoimport --db logs --collection action_logs --type tsv -f updated_at,transaction_time,origin  --file parsed.tsv

回答4:

I think giving a white spaces in the file name of directory will also contribute to this error.

来源：https://stackoverflow.com/questions/30953611/mongodb-error-validating-settings-only-one-positional-argument-is-allowed

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json

mongodb

mongoimport