Dear Marc,
this is probably because short file names are disabled on that external
drive. R needs short file names to be enabled on the drive where it is
installed - please check/follow according to Microsoft documentation on
turning on Short File Names (SFN, aka 8.3 names, 8dot3 names).
Best,
Tomas
On 10/22/2018 03:34 PM, Marc Capavanni via R-help wrote:
Hi all,
This is my second time posting this, I accidentally sent the first email
without the proper subject header. Hopefully this won't create any noise
and a moderator can dismiss the first one.
I'm considering filing this as a bug report but wanted to make sure first
that I'm not doing something wrong.
A piece of software which I develop installs R as part of its dependencies.
This normally works perfectly fine. However we noticed a bug when
installing to external drives on a path that includes a space, RScript.exe
and R.exe will not work.
E:\Program Files (x86)\R-3-3-3\bin>Rscript.exe
'E:\Program' is not recognized as an internal or external command,
operable program or batch file.
As you can see I'm in the directory itself, and simply calling the
executable without entering a path.
Similarly, if I do enter the full path with quote marks, I get the same
issue.
E:\>"E:\Program Files (x86)\R-3-3-3\bin\Rscript.exe"
'E:\Program' is not recognized as an internal or external command,
operable program or batch file.
At this stage I'm thinking it's either an R bug or a Windows bug, but I can
run the following just fine.
E:\Program Files (x86)\HelloWorldProj\bin>HelloWorldProj.exe
Hello, world!
I've tested this with two variables.
A - Using the R installer OR Simply copying the binaries
B - Writing to E:\R-3-3-3 OR Writing to E:\Program Files (x86)\R-3-3-3
A does not affect the outcome in any way, however R only works when B uses
the path without spaces.
I searched elsewhere on the internet for the same and interestingly it was
another R install with this issue. I believe the commenters here were
erroneously attributing it to the user.
https://stackoverflow.com/questions/43510438/how-to-run-an-executable-that-contains-a-space-in-path-from-command-line-on-wind
Any thoughts? I'm open to a sensible workaround, and if it is a bug I'm
happy to raise it.
Thanks,
Marc
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