CODEWITHSUNDEEP
rinstallation
yearntolearn
yearntolearn

Reputation: 1074

Installed R package different from a used R package to build another package

I am attempting to write a R package. As I run

devtools::check(), one of the warnings messages is

Found the following significant warnings: Warning: Installed Rcpp (0.12.12) different from Rcpp used to build dplyr (0.12.10).

I then

remove.packages("Rcpp")

and

install.packages("Rcpp", repo = "https://cran.rstudio.com/bin/macosx/el-capitan/contrib/3.4/Rcpp_0.12.10.tgz")

It gives me Warning in install.packages : cannot open URL 'https://cran.rstudio.com/bin/macosx/el-capitan/contrib/3.4/Rcpp_0.12.10.tgz/src/contrib/PACKAGES.rds': HTTP status was '404 Not Found'

What would be the best solution to this? Thank you very much!!

Upvotes: 2

Views: 63

Answers (1)

Hugh
Hugh

Reputation: 16099

You should not worry too much about this error if you are still drafting this package (i.e. there's still some time to go before you actually use it), as it's possible there will be another change of version of these two packages. Obviously if you encounter any strange errors, or there are features from the most recent versions of either, you should fix it.

It's inadvisable to downgrade a package (i.e. change Rcpp in your case); instead, you should upgrade both dplyr and Rcpp to a concurrent version. This can be best achieved by using the CRAN repository. In a fresh session,

remove.packages(c("dplyr", "Rcpp"))
## Restart
install.packages("dplyr")  # Rcpp is a dependency

Note: to install a particular version, use devtools::install_version:

devtools::install_version("Rcpp", version = "0.12.10")

The error you got was you directed install.packages to look at the package file as if it were a package repository. This resulted in an HTTP 404 error, as there was no PACKAGES.rds file relative to the phantom repository.

To install a package file directly, set repos=NULL in install.packages.

Upvotes: 2

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