[R] error message

Martin Morgan mtmorgan at fhcrc.org
Tue May 22 18:56:46 CEST 2007

Hi Karen --

This sounds like a Bioconductor question, and should be sent to the
Bioconductor list.


Likely the complaint is about RMySQL being too old, rather than R. The
idea of 'reinstalling folders' doesn't sound like a good strategy for
updating packages; for Bioconductor see



> source("http://www.bioconductor.org/biocLite.R")
> biocLite("exonmap")

does the trick. If not and the problem seems to be RMySQL, then try

> biocLite("RMySQL")

or in a more robust way update all of your currently installed
packages with

> library("Biobase")
> update.packages(repos=biocReposList())

Finally, please provide a more informative subject line and the output

> sessionInfo()

so that the community can get a better understanding of the platform
and packages you're using, and hence the source of your problems.



karen power <karen.power at ucd.ie> writes:

> Hi, 
> I am trying to install the package exonmap and RMySQL however I keep
> getting the following error:
> "Error in library(pkg, character.only = TRUE) : 
>         'RMySQL' is not a valid package -- installed < 2.0.0?"
> I have R version 2.4.1 so I know its not a version issue. I deleted and
> reinstalled the folders again and the same thing happened. Has anyone
> any ideas?
> Thanks, 
> Karen
> ______________________________________________
> 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
> and provide commented, minimal, self-contained, reproducible code.

Martin Morgan
Bioconductor / Computational Biology

More information about the R-help mailing list