Gerardo,
I don't know off hand why this error happens, but we can try to narrow it down.
- Are you able to install other packages? Can you try installing a package with "install.packages" command, for example:
install.packages("shiny")
- If that works, can you try the following:
devtools::install_github("rstudio/shiny")
- One possibility is the path to your temp directory where the package is first downloaded is causing problem. You could try setting your "TEMP" environment variable to a simple path such as "C:\temp", restart RStudio, and then try to install "shinyapps".
Thanks,
Fereshteh