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

[Richard M. Heiberger]

I see this in the examples section of .Rd files.

The .Rd file appears in *Buffer List* twice, once as ESS[S] [none] and
once as Rd.

A related consequence is that when I quit C-x C-c an Rd file,
while the cursor is in the examples section, the quit doesn't work and also
doesn't give a warning.

Rich

On Sun, Mar 20, 2016 at 3:52 PM, Brian Hobbs <rebdh using channing.harvard.edu> wrote:
> I noticed this peculiarity myself a few months ago. It does seem to only
> occur in code chunks, so I have adapted to only saving buffers to new names
> when in the latex or markdown sections of a document (and not in R code
> chunks).
>
> Brian
>
> On Fri, Mar 18, 2016 at 4:45 PM, Stephen Eglen <sje30 using cam.ac.uk> wrote:
>
>> 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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>>
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