dependency ‘slam’ is not available when installing TM package

Question

I was able to use the library(tm) in r without problem until today, when loading tm shows:

library(tm)

Answer 1

I found a hint at this german site about R under Install additional R packages ("Zusätzliche R-Pakete installieren") After I installed slam seperatly over apt-get for example:

sudo apt-get install r-cran-slam

I could install tm the normal way:

install.packages('tm')

And load the library aswell.

I hope my answer helps someone.