MinGW Installation Manager download error

I attempted an installation which included the Ada compiler;  
a message box popped up with the following error:

http://osdn.net/dl/mingw/libgnat-8.2.0-3-mingw32-dll-6.tar.lzma:
opened with unexpected status: code = 404
please report this to the mingw-get maintainer
Get package:
http://osdn.net/dl/mingw/libgnat-8.2.0-3-mingw32-dll-6.tar.lzma:
download failed

The Details pane, as expected, reported a failure to install the missing package.

_______________________________________________
MinGW-Users mailing list
[email protected]

This list observes the Etiquette found at
http://www.mingw.org/Mailing_Lists.
We ask that you be polite and do the same.  Disregard for the list etiquette may cause your account to be moderated.

_______________________________________________
You may change your MinGW Account Options or unsubscribe at:
https://lists.osdn.me/mailman/listinfo/mingw-users
Also: mailto:[email protected]?subject=unsubscribe