Important note to the 
maintainer of the 
GSRI
package: 
An error occured while trying to generate the 
citation from the CITATION file. This typically 
occurs when the file contains R code that relies on 
the package to be installed e.g. it contains calls 
to things like packageVersion() or 
packageDate() instead of using 
meta$Version or meta$Date. 
See R documentation 
for more information.