Error initializing Rstudio

When I start Rstudio I find the following "ERROR" , related to the "manipulate" and "rstudio" packages:

Error installing package: * installing *source* package 'rstudio' ...
Aviso em file(file, ifelse(append, "a", "w")) :
  cannot open file 'D:/Users/Marcos/Documents/R/win-library/3.1/rstudio/DESCRIPTION': No such file or directory
Error in file(file, ifelse(append, "a", "w")) : 
  não é possível abrir a conexão
ERROR: installing package DESCRIPTION failed for package 'rstudio'
* removing 'D:/Users/Marcos/Documents/R/win-library/3.1/rstudio'

Error installing package: * installing *source* package 'manipulate' ...
Aviso em file(file, ifelse(append, "a", "w")) :
  cannot open file 'D:/Users/Marcos/Documents/R/win-library/3.1/manipulate/DESCRIPTION': No such file or directory
Error in file(file, ifelse(append, "a", "w")) : 
  não é possível abrir a conexão
ERROR: installing package DESCRIPTION failed for package 'manipulate'
* removing 'D:/Users/Marcos/Documents/R/win-library/3.1/manipulate'

Does anyone know how to avoid this "ERROR" ?