permission denied error while building/checking R package on WIndows -

i tried build r package hyperspec using windows vista. when so, following error message:

warning in file.copy(pkgname, tdir, recursive = true) problem copying .\hyperspec\data\barbiturates.rda c:\users\jenzig\appdata\local\temp\rtmpoeiqbd\rbuilde446d3a290d\hyperspec\data\barbiturates.rda: permission denied 

it same whether use command line r cmd build or r studio's build tools (rtools installed, package dependencies installed).

to solve problem, tried change path temporary directory or manually set permissions folders without success. tried execute administrator again no success.

i think, similiar problem discussed here:

https://stat.ethz.ch/pipermail/r-devel/2013-april/066389.html

but there no solution provied problem.

in addition have same problem when try build package win7.

i had problem. had installed package in question using command line:

sudo r -e "install.packages('somepackage', repos='http://cran.rstudio.com/')" 

then when tried building somepackage package source got permission denied message.

the solution run following command line:

sudo r -e "remove.packages('somepackage')" 

then able build , check somepackage source.

edit

i see original question specific windows. in case think need run powershell window administrator , use following command:

rscript.exe "remove.packages('somepackage')"