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

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 ?

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 :