ERROR: dependency 'transformr' is not available for package 'gganimate'

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, ,
6

There is some problem with the Rtools as well.

It is a PATH and version problem, that appeared since R 3.5.

Here is the bug fix :

# Set path of Rtools
Sys.setenv(PATH = paste(Sys.getenv("PATH"), "*InstallDirectory*/Rtools/bin/",
                       "*InstallDirectory*/Rtools/mingw_64/bin", sep = ";")) #for 64 bit version
Sys.setenv(BINPREF = "*InstallDirectory*/Rtools/mingw_64/bin")
library(devtools)

#Manually "force" version to be accepted 
assignInNamespace("version_info", c(devtools:::version_info, list("3.5" = list(version_min = "3.3.0", version_max = "99.99.99", path = "bin"))), "devtools")
find_rtools() # is TRUE now

# Now you can install transformr then gganimate
devtools::install_github("thomasp85/transformr")
devtools::install_github("dgrtwo/gganimate")

I hope it works for you.

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