[R] loading lme4 fails - "function 'cholmod_l_start' not provided by package 'Matrix'"

Prof Brian Ripley ripley at stats.ox.ac.uk
Wed Feb 4 12:13:47 CET 2009

Did you update your version of Matrix?  It should be 0.99375-20 (or 
perhaps -18).  E.g. for me

> sessionInfo()
R version 2.8.1 Patched (2009-02-04 r47838)

LC_COLLATE=English_United Kingdom.1252;LC_CTYPE=English_United 
Kingdom.1252;LC_NUMERIC=C;LC_TIME=English_United Kingdom.1252

attached base packages:
[1] stats     graphics  grDevices utils     datasets  methods   base

other attached packages:
[1] lme4_0.999375-28   Matrix_0.999375-20 lattice_0.17-20

loaded via a namespace (and not attached):
[1] grid_2.8.1  tools_2.8.1


R 2.9.0 will check versions when loading a package, but 2.8.1 does 

On Wed, 4 Feb 2009, Megan Davies wrote:

> Hello UseRs,
> I've just tried to load the lme4 package and got the error message, 
> "function 'cholmod_l_start' not provided by package 'Matrix'".  I 
> downloaded the latest version of lme4 and its required packages 
> (lattice and Matrix) as suggested in the archives and still got this 
> message.  The FAQ and archives suggested to check the R version

and also the package version requirements.

> requirements, but I'm already using the latest available version of 
> R, 2.8.1.  I'm using Windows XP Professional.

> Thanks for any help,
> Megan Davies
> Megan Davies
> Policy and Advice Officer, Statistician
> Scottish Natural Heritage
> 01463 725072

Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

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