On Dec 22, 2008, at 15:30 , Erich Neuwirth wrote:
We found out about this problem only a few days ago.
The reason is that the official binary packages were compiled with
2.8.1, but the distributed Windows binary of R was still 2.8.0.
rscproxy needs to be compiled for the correct version of R.
Now with R 2.8.1 being release officially the problem should
disappear,
but we (which is mostly Thomas Baier, the mastermind behind rcom and
R(D)COM server) will try to find a way to avoid this problem with the
next R update.
Before R 2.8.0, rproxy.dll distributed with R itself was
supplying the underlying mechanism for the rcom package and R(D)COM
server. rproxy.dll was removed from R itself, and rscproxy is the
current substitute. rproxy.dll, being part of R itself, always matched
the R version to the very last digit. With rscproxy, it is more
difficult to stay in sync.
FWIW: technically, you don't have to match the patch level version.
Although default DLL checks usually require perfect match, it should
be safe to require that R version lies in [x.y.z, x.y+1.0) where
x.y.z is the R version that the interfacing DLL was compiled against.
(And hence it is safe to use R x.y.0 as the base for compilation until
R x.y+1.0 is released).
Cheers,
Simon
meerman wrote:
After installing the package 'rscproxy' downloaded from the CRAN
server, I
get the following error message from R 2.8.0 about a version
conflict :
package 'rscproxy' successfully unpacked and MD5 sums checked
The downloaded packages are in
C:\Documents and Settings\John Meerman\Local
Settings\Temp\RtmpbK9mxN\downloaded_packages
updating HTML package descriptions
local({pkg <- select.list(sort(.packages(all.available = TRUE)))
+ if(nchar(pkg)) library(pkg, character.only=TRUE)})
*Warning message:
package 'rscproxy' was built under R version 2.8.1 *>
This prevents me e.g. to use the R (D)COM 3.0 server.
John Meerman
[[alternative HTML version deleted]]
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Erich Neuwirth, University of Vienna
Faculty of Computer Science
Computer Supported Didactics Working Group
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