[ESS] "An indirect buffer cannot visit a file."

[Stephen Eglen]

I wonder: does it happen when you are in a code chunk, but works ok when
you are in a latex chunk?


On Fri, Mar 18 2016, Christopher W. Ryan wrote:

> Sometimes when editing an .Rnw file, working with R, Sweave, and
> emacs, I want to save my current buffer under some other file name
> than the file it came from, and sometimes I will get this error
> message:
>
> "An indirect buffer cannot visit a file."
>
> I have not yet found a patter as to the conditions under which this
> error message pops up.
>
> I'm having a hard time understanding indirect buffers, but I've never
> intentionally used or created one. I don't anticipate I will ever have
> a need to. I don't know how a particular buffer becomes an indirect
> buffer. Is there an indication somewhere, perhaps in the status bar,
> that a buffer is an indirect one? And is there a way to turn an
> indirect buffer back into a "regular" buffer?
>
> Thanks.
>
> --Chris Ryan
>
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