bug#24098: 25.1; Auto complete not working

[Drew Adams]

> Looks like auto-complete code is hitting this change:
> * Incompatible Lisp Changes in Emacs 25.1
> ---
> ** 'setq' and 'setf' must now be called with an even number of
> arguments.  The earlier behavior of silently supplying a nil to the
> last variable when there was an odd number of arguments has been
> eliminated.

Haven't followed this thread, and haven't checked the code to
see how this is handled.  But isn't an error raised in such a
way that it is clear what happened?  Why wasn't it clear to the
OP what the problem was?