You have an older version of pkg:tm
. The current version of tm
has a DESCRIPTION file that lists SnowballC
as a "Suggests". Older versions suggested Snowball.
Package: tm
Title: Text Mining Package
Version: 0.5-10
Date: 2014-01-07
Authors@R: c(person("Ingo", "Feinerer", role = c("aut", "cre"),
email = "feinerer@logic.at"),
person("Kurt", "Hornik", role = "aut"),
person("Artifex Software, Inc.", role = c("ctb", "cph"),
comment = "pdf_info.ps taken from GPL Ghostscript"))
Depends: R (>= 2.14.0)
Imports: parallel, slam (>= 0.1-31)
Suggests: filehash, proxy, Rcampdf, Rgraphviz, Rpoppler, SnowballC, XML
This is the message you currently get from CRAN:
Package ‘Snowball’ was removed from the CRAN repository.
Formerly available versions can be obtained from the archive.
Archived on 2014-03-16 at the request of the maintainer.
You should update to the current version of tm
. Try this:
update.packages("tm", checkBuilt = TRUE)