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I want to install the package impactr from github. Following the guideline stated by the package developer (https://rdrr.io/github/kamclean/impactr/f/vignettes/vignette_2_extract.Rmd), I repeatedly get the following error.

devtools::install_github("kamclean/impactr")
my_dois <- c("10.1111/j.1365-2486.2008.01617.x","10.1007/s10533-011-9655-2")       
out_doi <- impactr::extract_doi(doi = my_dois, get_impact = TRUE)
Error: 'extract_doi' is not an exported object from 'namespace:impactr'

What is the problem? Any help is highly appreciated!

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  • Are there any warnings/errors from the command devtools::install_github("kamclean/impactr")? Have you tried restarting R and loading the impactr library with library(impactr) before running the commands? Commented Feb 10, 2022 at 6:17
  • I've tried the library(impactr). But there is a warning error like Warning in file.copy(lp, dirname(pkgdir), recursive = TRUE, copy.date = TRUE) : problem copying C:\Users\lucp10632\Documents\R\win-library\4.1\00LOCK-impactr\impactr\libs\x64\impactr.dll to C:\Users\lucp10632\Documents\R\win-library\4.1\impactr\libs\x64\impactr.dll: Permission denied. Commented Feb 10, 2022 at 6:22
  • Sounds to me like it didn't install properly. Perhaps try uninstalling the package, then installing using the remotes package (i.e. remotes::install_github("kamclean/impactr") and/or raise an issue on github (github.com/kamclean/impactr/issues) Commented Feb 10, 2022 at 9:52
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