bug#20538: 24.4; Attempt to delete a surrogate minibuffer frame

[Eli Zaretskii]

> Date: Sat, 09 May 2015 14:35:40 -0500
> From: "Roland Winkler" <winkler@gnu.org>
> 
> 
> I do not know how I got into this (sorry, I do not have a recipe to
> reproduce this either).  I have a frame I want to delete by running
> delete-frame.  Yet this only gives me the error message
> 
>   "Attempt to delete a surrogate minibuffer frame"
> 
> and delete-frame refuses to do its job.  What does this mean?

It means you tried to delete a frame that serves as a minibuffer for
another frame.