Warning in install.packages :
package ‘https://cran.r-project.org/bin/windows/contrib/3.5/prophet_0.3.0.1.zip’ is not available (for R version 3.4.1)
mara
July 3, 2018, 12:36pm
2
You should be able to compile it from the source. I assume you're using windows (since it says windows in your path), in which case you'll need Rtools.
See guide here: https://stat.ethz.ch/~dettling/compfromsource.pdf
The thread below might also contain some useful pointers:
To hopefully clarify a bit (since the installation messages are definitely not the most user-friendly), this line:
means that stringi failed to install (because, in this case, you were installing from source, stringi needs compilation, and it failed to compile). That's why you keep getting error messages about stringi being missing.
As Mara said, if you haven't installed RTools before, you will need to do that if you want to install packages from source that need compilation (these are ones with C++ or Fortran code). But if you want to try to quickly get moving again, you can see what happens if you install the older pre-compiled binary version of stringi (run install.packages("stringi", …