R help - Jan 2006 - CRAN versions of lme4/Matrix don't appear to work with R 2.1.1

I am currently using R 2.1.1 under Windows and I do not seem to be able
to load the current versions of lme4/Matrix. I have run
'update.packages.' I understand this is still experimental software but
I would like access to a working version.

Thanks.

Chuck

R Output:
> library(lme4)
Loading required package: Matrix
Error in lazyLoadDBfetch(key, datafile, compressed, envhook) : 
        ReadItem: unknown type 241
In addition: Warning messages:
1: package 'lme4' was built under R version 2.3.0 
2: package 'Matrix' was built under R version 2.3.0 
Error: package 'Matrix' could not be loaded
>

Did you try upgrading to R 2.2.1?  I just installed R 2.2.1 with the 
latest version of "lme4" and "Matrix", and they loaded fine
for me.
 > library(lme4)
Loading required package: Matrix
Loading required package: lattice
 > sessionInfo()
R version 2.2.1, 2005-12-20, i386-pc-mingw32

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

other attached packages:
      lme4   lattice    Matrix
  "0.98-1" "0.12-11"  "0.99-6"

	  Running Windows XP.  (This may be obvious from 'i386-pc-mingw23', but
I'm no sufficiently aware to know.)

	  Doug Bates has worked very hard to create this, and I for one would 
not want to ask him to take the time to make it backward compatible for 
those who for whatever reason haven't yet upgraded to R 2.2.1, 
especially since for most of us it is fairly easy to upgrade.

	  Spencer Graves

White, Charles E WRAIR-Wash DC wrote:
> I am currently using R 2.1.1 under Windows and I do not seem to be able
> to load the current versions of lme4/Matrix. I have run
> 'update.packages.' I understand this is still experimental software
but
> I would like access to a working version.
> 
> Thanks.
> 
> Chuck
> 
> R Output:
> 
> 
>>library(lme4)
> 
> Loading required package: Matrix
> Error in lazyLoadDBfetch(key, datafile, compressed, envhook) : 
>         ReadItem: unknown type 241
> In addition: Warning messages:
> 1: package 'lme4' was built under R version 2.3.0 
> 2: package 'Matrix' was built under R version 2.3.0 
> Error: package 'Matrix' could not be loaded
> 
> 
> ______________________________________________
> R-help at stat.math.ethz.ch mailing list
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide!
http://www.R-project.org/posting-guide.html

I made a typographical error, since I am running R 2.2.1. I wouldn't
dream of asking Professor Bates to make things backwards compatible to
an old version. Since the packages are loading fine for you, I will
assume there was a download error with the packages I have, uninstall
them, and try again.

Chuck

-----Original Message-----
From: Spencer Graves [mailto:spencer.graves at pdf.com] 
Sent: Thursday, January 12, 2006 4:08 PM
To: White, Charles E WRAIR-Wash DC
Cc: r-help at stat.math.ethz.ch; Douglas Bates
Subject: Re: [R] CRAN versions of lme4/Matrix don't appear to work with
R 2.1.1

	  Did you try upgrading to R 2.2.1?  I just installed R 2.2.1
with the 
latest version of "lme4" and "Matrix", and they loaded fine
for me.
....

	  Doug Bates has worked very hard to create this, and I for one
would 
not want to ask him to take the time to make it backward compatible for 
those who for whatever reason haven't yet upgraded to R 2.2.1, 
especially since for most of us it is fairly easy to upgrade.

	  Spencer Graves

I blew away my existing R directory structure, reinstalled R 2.2.1 from
scratch, downloaded lme4 and associated packages from scratch, tried to
load lme4 and got the same error message. Again, I am using the Windows
version of R on XP.

Chuck

R : Copyright 2005, The R Foundation for Statistical Computing
Version 2.2.1  (2005-12-20 r36812)
ISBN 3-900051-07-0
....
> library(lme4)
Loading required package: Matrix
Error in lazyLoadDBfetch(key, datafile, compressed, envhook) : 
        ReadItem: unknown type 241
In addition: Warning messages:
1: package 'lme4' was built under R version 2.3.0 
2: package 'Matrix' was built under R version 2.3.0 
Error: package 'Matrix' could not be loaded
>

After downloading from the WA mirror, the lme4 related packages appear
to run fine . Thanks for everyone's help.

Chuck