Failed to create the file /Users/wuyi/Pictures/bing-wallpapers//: Is a directory

[typhoonzero]

running the command fails now:

bing-wallpaper-daily-mac-multimonitor

Downloading: ...
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0
Warning: Failed to create the file /Users/wuyi/Pictures/bing-wallpapers//: Is
Warning: a directory
40 15862 40 6353 0 0 13373 0 0:00:01 --:--:-- 0:00:01 13373
curl: (23) Failure writing output to destination
Downloading: ...
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0
Warning: Failed to create the file /Users/wuyi/Pictures/bing-wallpapers//: Is
Warning: a directory
75 15862 75 11889 0 0 21636 0 --:--:-- --:--:-- --:--:-- 21636
curl: (23) Failure writing output to destination
Downloading: ...
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
0 0 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0
Warning: Failed to create the file /Users/wuyi/Pictures/bing-wallpapers//: Is
Warning: a directory
100 15864 100 15864 0 0 49789 0 --:--:-- --:--:-- --:--:-- 49789
curl: (23) Failure writing output to destination