Emails not being sent when transaction complete Folks:

I'm wondering if this is a bug or something else. Essentially, test emails from the system work fine but emails that are supposed to be sent when the order moves to "Processing" do not. The log file from yesterday states: 2016/03/17 14:31:52 [info] [plugin] [Forced] Can't send email if no status or emails exist.

But there is a status (processing) and an email for that status ({{ order.email }}). I have attempted several dummy transactions today as well but the emails don't come through and the logs don't update either. And no, there's nothing in the spam folder. Or error messages sent back to the host.

I even tried to have the order emails sent to a specific email address instead of {{ order.email }}. No joy.

Finally, I am using the default commerce templates so I'm pretty sure the issue isn't there.

Does anyone have any ideas?
The error is not telling you that the email address is missing, I think, but rather that the email itself to send is missing.  

Have you assigned an actual email to send for that particular status?

Commerce->Settings->Order Statuses - check the column 'Has Emails' has a value of 1 or more in it.  

(To actually assign one, create it first in the email section, and then in this section click on the order status and in the bottom field 'Status Emails' you'll then be able to choose your created email).

Based on the error and the code generating it (in Commerce_OrderStatusesService.php) - I would say you've set up a status but not actually assigned the email you've made to it.