[GRASS-user] Rscript error when using v.class.mlR

Jamille Haarloo j.r.haarloo at gmail.com
Mon Jul 17 06:56:28 PDT 2023


Thank you Micha,

This was the msg following "C:\Users\haarlooj\Documents> sessionInfo()":
'sessionInfo' is not recognized as an internal or external command,
operable program or batch file.

I looked for the location and found this as location of R:
C:\Program Files\R\R-4.3.0\bin\x64
Location for Rstudio:
C:\Program Files\RStudio

Is it correct that I need to change the paths? What is the best method?

Best,
Jamille


On Sat, Jul 15, 2023 at 9:17 AM Micha Silver <tsvibar at gmail.com> wrote:

> Hi Jamille
>
>
> On 15/07/2023 2:04, Jamille Haarloo wrote:
> > Dear all,
> >
> > What was the solution to this error? I recently got a similar error
> > from the same module v.class.mlR. I am using GRASS GIS 8.2.1  on
> > Windows 10.
> >
>
> The previous post was in reference to MacOS. Can you check on your
> system that the Rscript executable is available from the GRASS command
> window? i.e.
>
> - start grass (even without the GUI)
>
> - go to the command shell
>
> - run Rscript -e "sessionInfo()"
>
>
> This will identify if the problem is due to missing PATH in the env
> variables.
>
>
>
> > Best,
> > Jamille
> >
> > ----
> > Running R now. Following output is R output.
> > Traceback (most recent call last):
> >   File "C:\Users\haarlooj\AppData\Roaming\GRASS8\addons\scri
> > pts\v.class.mlR.py <http://v.class.mlR.py>", line 977, in <module>
> >     main()
> >   File "C:\Users\haarlooj\AppData\Roaming\GRASS8\addons\scri
> > pts\v.class.mlR.py <http://v.class.mlR.py>", line 908, in main
> >     subprocess.check_call(
> >   File "C:\OSGeo4W\apps\Python39\lib\subprocess.py", line
> > 368, in check_call
> >     retcode = call(*popenargs, **kwargs)
> >   File "C:\OSGeo4W\apps\Python39\lib\subprocess.py", line
> > 349, in call
> >     with Popen(*popenargs, **kwargs) as p:
> >   File "C:\OSGeo4W\apps\Python39\lib\subprocess.py", line
> > 951, in __init__
> >     self._execute_child(args, executable, preexec_fn,
> > close_fds,
> >   File "C:\OSGeo4W\apps\Python39\lib\subprocess.py", line
> > 1420, in _execute_child
> >     hp, ht, pid, tid = _winapi.CreateProcess(executable,
> > args,
> > FileNotFoundError: [WinError 2] The system cannot find the
> > file specified
> >
> >
> > On Sun, Feb 20, 2022 at 8:24 AM Nicklas Larsson via grass-user
> > <grass-user at lists.osgeo.org> wrote:
> >
> >     Daniel,
> >
> >     I assume you use the official GRASS app bundle for mac. If you are
> >     not using the final 8.0.0 version, but one of the release
> >     candidates, I'd suggest you download the latest. There are changes
> >     in the startup script in the final version that relate to PATH
> >     issues like this.
> >
> >
> >
> >     Best,
> >     Nicklas
> >
> >
> >
> >
> >
> >
> >
> >     On Sunday, 20 February 2022, 01:55:28 CET, Daniel Kozar via
> >     grass-user <grass-user at lists.osgeo.org> wrote:
> >
> >
> >
> >
> >
> >     Hi Micha,
> >
> >     Thanks for the reply. I ran the script lines you sent both in the
> >     terminal as well as a GRASS session. Rscript is recognized in the
> >     terminal command but not in the GRASS 8.0 command. Since GRASS 8.0
> >     did not recognize Rscript I tried making a symbolic link for
> >     "Rscript" to the full path: /usr/local/bin/Rscript. This still
> >     doesn't recognize the command and I'm unsure how else to work
> >     around it.
> >
> >     Any Mac aficionados reading this - do you have an idea to resolve
> >     this?
> >
> >     Thanks
> >     Daniel
> >
> >     On Sat, Feb 19, 2022 at 1:46 AM Micha Silver <tsvibar at gmail.com>
> >     wrote:
> >     > Hi
> >     >
> >     >
> >     > On 19/02/2022 04:27, Daniel Kozar via grass-user wrote:
> >     >> Hi everyone,
> >     >>
> >     >> When using the extension "v.class.mlR" I get an error [Message
> >     1] (see
> >     >> below) that "Rscript" cannot be located. I traced this back to the
> >     >> script for "v.class.mlR" and edited line 908 to read the direct
> >     path
> >     >> to Rscript - '/usr/local/bin/Rscript' rather than 'Rscript' alone.
> >     >> However, when I re-open GRASS 8.0 I get an error [Message 2]
> >     that the
> >     >> extension failed when loading and that the operation isn't
> >     permitted.
> >     >> I allowed for the application to have administrative rights but it
> >     >> still doesn't work. Does anyone know how to work around this or
> >     solve
> >     >> the issue finding "Rscript"?
> >     >>
> >     >> I have R running and have installed necessary packages. I'm
> >     >> running GRASS on MacOS Monterey.
> >     >
> >     >
> >     > This looks like a Mac problem (which I know nothing about).
> >     >
> >     > To test, can you run, first from a terminal:
> >     >
> >     > micha at RMS:~$ Rscript -e "sessionInfo()"
> >     >
> >     > Now run the same from within a GRASS session:
> >     >
> >     > (here's what I get)
> >     >
> >     > micha at RMS:QGIS$ g.version
> >     > GRASS 8.1.dev <http://8.1.dev> (2022)
> >     >
> >     > micha at RMS:QGIS$ Rscript -e "sessionInfo()"
> >     > R version 4.1.2 (2021-11-01)
> >     > Platform: x86_64-pc-linux-gnu (64-bit)
> >     > Running under: Debian GNU/Linux 11 (bullseye)
> >     >
> >     > Matrix products: default
> >     > BLAS:   /usr/lib/x86_64-linux-gnu/ openblas-pthread/libblas.so.3
> >     > LAPACK: /usr/lib/x86_64-linux-gnu/
> >     openblas-pthread/libopenblasp- r0.3.13.so <http://r0.3.13.so>
> >     >
> >     > locale:
> >     >   [1] LC_CTYPE=en_GB.UTF-8       LC_NUMERIC=C
> >     >   [3] LC_TIME=en_GB.UTF-8        LC_COLLATE=en_GB.UTF-8
> >     >   [5] LC_MONETARY=en_GB.UTF-8    LC_MESSAGES=en_GB.UTF-8
> >     >   [7] LC_PAPER=en_GB.UTF-8       LC_NAME=C
> >     >   [9] LC_ADDRESS=C               LC_TELEPHONE=C
> >     > [11] LC_MEASUREMENT=en_GB.UTF-8 LC_IDENTIFICATION=C
> >     >
> >     > attached base packages:
> >     > [1] stats     graphics  grDevices utils     datasets methods base
> >     >
> >     > loaded via a namespace (and not attached):
> >     > [1] compiler_4.1.2
> >     >
> >     > If the Rscript executable is not found, then v.class.mlR cannot
> >     be run.
> >     >
> >     >
> >     >>
> >     >> Any help would be appreciated.
> >     >> - Daniel
> >     >> ------------------------------ ------------------------------
> >     -----------------
> >     >> *[Message 1]*
> >     >>
> >     >> Running R now. Following output is R output.
> >     >>
> >     >> Traceback (most recent call last):
> >     >>
> >     >> File "/Users/dankozar/Library/ GRASS/8.0/Addons/scripts/v.
> >     class.mlR",
> >     >> line 977, in <module>
> >     >>
> >     >> main()
> >     >>
> >     >> File "/Users/dankozar/Library/ GRASS/8.0/Addons/scripts/v.
> >     class.mlR",
> >     >> line 908, in main
> >     >>
> >     >> subprocess.check_call(
> >     >>
> >     >> File
> >     >> "/Applications/GRASS-8.0.app/ <http://GRASS-8.0.app/>
> >     Contents/Resources/lib/ python3.9/subprocess.py",
> >     >> line 368, in check_call
> >     >>
> >     >> retcode = call(*popenargs, **kwargs)
> >     >>
> >     >> File
> >     >> "/Applications/GRASS-8.0.app/ <http://GRASS-8.0.app/>
> >     Contents/Resources/lib/ python3.9/subprocess.py",
> >     >> line 349, in call
> >     >>
> >     >> with Popen(*popenargs, **kwargs) as p:
> >     >>
> >     >> File
> >     >> "/Applications/GRASS-8.0.app/ <http://GRASS-8.0.app/>
> >     Contents/Resources/lib/ python3.9/subprocess.py",
> >     >> line 951, in __init__
> >     >>
> >     >> self._execute_child(args, executable, preexec_fn, close_fds,
> >     >>
> >     >> File
> >     >> "/Applications/GRASS-8.0.app/ <http://GRASS-8.0.app/>
> >     Contents/Resources/lib/ python3.9/subprocess.py",
> >     >> line 1821, in _execute_child
> >     >>
> >     >> raise child_exception_type(errno_ num, err_msg, err_filename)
> >     >>
> >     >> FileNotFoundError: [Errno 2] No such file or directory: 'Rscript'
> >     >>
> >     >>
> >     >> *[Message 2]*
> >     >>
> >     >> Details: <[Errno 1] Operation not permitted: 'v.class.mlR'>
> >     >>
> >     >> WARNING: Some addons failed when loading. Please consider to
> >     update
> >     >> your addons by running 'g.extension.all -f'.
> >     >>
> >     >>
> >     >> --
> >     >> Thank you,
> >     >>
> >     >> Daniel Kozar
> >     >> PhD Candidate
> >     >> UC Davis - Hydrologic Sciences
> >     >> djkozar at ucdavis.edu
> >     >> (814) 380-6900
> >     >>
> >     >> ______________________________ _________________
> >     >> grass-user mailing list
> >     >> grass-user at lists.osgeo.org
> >     >> https://lists.osgeo.org/ mailman/listinfo/grass-user
> >     >
> >     > --
> >     > Micha Silver
> >     > Ben Gurion Univ.
> >     > Sde Boker, Remote Sensing Lab
> >     > cell: +972-523-665918
> >     >
> >     >
> >
> >
> >     --
> >     Thank you,
> >
> >     Daniel Kozar
> >     Graduate Student
> >     UC Davis - Hydrologic Sciences
> >     djkozar at ucdavis.edu
> >     (814) 380-6900
> >
> >
> >     --
> >     Thank you,
> >
> >     Daniel Kozar
> >     Graduate Student
> >     UC Davis - Hydrologic Sciences
> >     djkozar at ucdavis.edu
> >     (814) 380-6900
> >
> >
> >     _______________________________________________
> >     grass-user mailing list
> >     grass-user at lists.osgeo.org
> >     https://lists.osgeo.org/mailman/listinfo/grass-user
> >     _______________________________________________
> >     grass-user mailing list
> >     grass-user at lists.osgeo.org
> >     https://lists.osgeo.org/mailman/listinfo/grass-user
> >
> >
> > _______________________________________________
> > grass-user mailing list
> > grass-user at lists.osgeo.org
> > https://lists.osgeo.org/mailman/listinfo/grass-user
>
> --
> Micha Silver
> Ben Gurion Univ.
> Sde Boker, Remote Sensing Lab
> cell: +972-523-665918
>
>
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