loading failed in installing R package fdaPDE from github - r

Question

Good morning,
I am trying to install the R package fdaPDE from GitHub repository "NegriLuca/fdaPDE-manifold" via RStudio1.4, using the package devtools. My OS is Windows 10, I am using Rtools35 and R3.5.1. The package has to be compiled from source. I have typed the following:
install.packages('devtools')
library(devtools)
install_github("NegriLuca/fdaPDE-manifold")
and got the following:
[… I omit the long compilation part …]
** building package indices
** testing if installed package can be loaded
*** arch - i386
Error: package or namespace load failed for 'fdaPDE'inlibrary.dynam(lib, package, package.lib):
DLL 'fdaPDE' not found: maybe not installed for this architecture?
Errore: loading failed
Esecuzione interrotta
*** arch - x64
Error: package or namespace load failed for 'fdaPDE' in library.dynam(lib, package, package.lib):
DLL 'fdaPDE' not found: maybe not installed for this architecture?
Errore: loading failed
Esecuzione interrotta
ERROR: loading failed for 'i386', 'x64'
* removing 'C:/Users/Gianmaria/Documents/R/win-library/3.5/fdaPDE'
In R CMD INSTALL
Error in i.p(...) :
(converted from warning) installation of package ‘C:/Users/GIANMA~1/AppData/Local/Temp/RtmpwDxgqJ/file466865be7d8c/fdaPDE_0.1-5.tar.gz’ had non-zero exit status
What can I do to fix this?

Answer 1

I have finally managed to install the package. What I did was the following:
-REMOVE previous installations (I had supposed that to be done automatically but it was not, and I had an older version installed) by typing in Rstudio
remove.packages("fdaPDE")
-In Windows cmd, after having downloaded the code from Github, type
"Path/to/Rfolder/R" CMD BUILD <path to folder fdaPDE>
"Path/to/Rfolder/R" CMD INSTALL -l <path name of the R library tree> <path name of the package to be installed>
Hope that this may be useful for other people who faces similar errors.