installation issue on Windows

[Drew N]

Hello,

I'm following the installation page (R-INLA Project - Download & Install) and am encountering the following error: 

remotes::install_version("INLA", version = "25.06.13",
+                          repos = c(getOption("repos"), INLA = "https://inla.r-inla-download.org/R/testing"), dep = TRUE)

Downloading package from url: https://inla.r-inla-download.org/R/testing/src/contrib/INLA_25.06.13.tar.gz
Skipping 2 packages not available: graph, Rgraphviz
* installing *binary* package 'INLA' ...
cp: unknown option -- )
Try '/usr/bin/cp --help' for more information.
ERROR: installing binary package failed

I do have graph and Rgraphviz packages installed. I'd appreciate any help, thank you. 

Best,

Andrew

[Drew N]

I also have Rtools45 and installed R version 4.5.1

[INLA help]

Using R-4.5 ? 

Seems like it grabs the source version and not the bin one….

You can download manually from 

https://inla.r-inla-download.org/R/testing/bin/windows/contrib/4.5/

And then install locally?

—

Haavard Rue

Helpdesk

he...@r-inla.org

On 8 Oct 2025 at 13:37 +0300, Drew N <biost...@gmail.com>, wrote:

Hello,

I'm following the installation page (R-INLA Project - Download & Install) and am encountering the following error: 

remotes::install_version("INLA", version = "25.06.13",
+                          repos = c(getOption("repos"), INLA = "https://inla.r-inla-download.org/R/testing"), dep = TRUE)

Downloading package from url: 

src/contrib/INLA_25.06.13.tar.gz
Skipping 2 packages not available: graph, Rgraphviz
* installing *binary* package 'INLA' ...
cp: unknown option -- )
Try '/usr/bin/cp --help' for more information.
ERROR: installing binary package failed

I do have graph and Rgraphviz packages installed. I'd appreciate any help, thank you. 

Best,
Andrew

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[Drew N]

Yes! Thank you so much!