R help - Dec 2020 - Error Message Cannot use `+.gg()` with a single argument. Did you accidentally put + on a new line?

For some simple reason, I am unable to see the mistake:

ggplot(filter(nlsw88, !(is.na(union))), aes(y = wage, x = union, fill = union))
+ geom_boxplot() + facet_wrap(~idblack)

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As the error message says, move the '+' sign from the start of the
second
line to the end of the preceding line.


On Sat, Dec 19, 2020 at 10:29 PM Rosato, Kyle <kyle at ehrs.upenn.edu>
wrote:
> For some simple reason, I am unable to see the mistake:
>
> ggplot(filter(nlsw88, !(is.na(union))), aes(y = wage, x = union, fill >
union))
> + geom_boxplot() + facet_wrap(~idblack)
>
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>
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