Michael,

remotes is a contributed package, so you should contact the author if that is 
what fails (you didn't say). FWIW only the latest version package binaries are 
available on CRAN, so if you need a specific older version of a package you 
need to compile it from sources - so chances are you are missing the necessary 
dependencies or tools to do that, but we can't tell without more details about 
what exactly fails for you.

Cheers,
Simon


> On Dec 8, 2023, at 6:52 AM, Michael Sewell <michael.sew...@ed.ac.uk> wrote:
> 
> Hi - I'm a postdoc at the University of Edinburgh who's urgently trying to 
> install an older version of a package (Seurat) listed on CRAN but without 
> success. The package is Seurat_4.4.0.tar.gz.
> 
> I currently work on a M1 Macbook Pro (with Sonoma installed) with RStudio 
> version 4.3.2 and tried to install the package using the following code:
> remotes::install_version(package = 'Seurat', version = 
> package_version('4.4.0'))
> 
> However this appears to be unsuccessful - I was wondering if there is any 
> guidance on how to install these on M1 macbooks? I have also tried 
> uninstalling and reinstalling R many times which again did not succeed. Any 
> help you could give me on this would be much appreciated.
> 
> BW,
> Michael
> 
> 
> Michael Sewell
> Research Fellow
> Montagne Lab
> UK DRI
> The University of Edinburgh
> Twitter: @pichaelmichael_<https://twitter.com/pichaelmichael_>
> Linkedin<https://www.linkedin.com/in/michael-sewell-2a3493bb>
> The University of Edinburgh is a charitable body, registered in Scotland, 
> with registration number SC005336. Is e buidheann carthannais a th' ann an 
> Oilthigh Dh�n �ideann, cl�raichte an Alba, �ireamh cl�raidh SC005336.
> 
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