falla install tolRlink ubuntu AWS

[Jorge]

Sistema:

Distributor ID: Ubuntu
Description: Ubuntu 14.04.3 LTS
Release: 14.04
Codename: trusty

Al intentar instalar tolRlink en un ubuntu sobre AWS se obtiene el siguiente error:

> install.packages('./tolRlink_1.0.tar.gz', repos=NULL, type="source")
Installing package into ‘/usr/local/lib/R/site-library’
(as ‘lib’ is unspecified)
During startup - Warning messages:
1: Setting LC_TIME failed, using "C" 
2: Setting LC_MONETARY failed, using "C" 
3: Setting LC_PAPER failed, using "C" 
4: Setting LC_MEASUREMENT failed, using "C" 
* installing *source* package ‘tolRlink’ ...
** R
** preparing package for lazy loading
** help
*** installing help indices
** building package indices
** testing if installed package can be loaded
During startup - Warning messages:
1: Setting LC_TIME failed, using "C" 
2: Setting LC_MONETARY failed, using "C" 
3: Setting LC_PAPER failed, using "C" 
4: Setting LC_MEASUREMENT failed, using "C" 
Error : .onLoad failed in loadNamespace() for 'tolRlink', details:
  call: .search.tolRoot.unix("/usr/lib64")
  error: could not find function "dir.exists"
Error: loading failed
Execution halted
ERROR: loading failed
* removing ‘/usr/local/lib/R/site-library/tolRlink’
Warning message:
In install.packages("./tolRlink_1.0.tar.gz", repos = NULL, type = "source") :
  installation of package ‘./tolRlink_1.0.tar.gz’ had non-zero exit status
> 
> 

[Jorge]

El error se debe a que la función dir.exists no existe en la versión de R 3.0.4, se puede cambiar por file_test("-d", path)