無法在 RStudio 桌面上安裝或加載包

Question

我嘗試安裝RcppEigen包，但是出現錯誤，提示RStudio無法打開URL。 我也無法在 RStudio 中安裝其他軟件包。

# install
install.packages("RcppEigen")

# error message
Warning in install.packages :
  unable to access index for repository https://cran.rstudio.com/src/contrib:
  cannot open URL 'https://cran.rstudio.com/src/contrib/PACKAGES'
Warning in install.packages :
  unable to access index for repository https://cran.rstudio.com/src/contrib:
  cannot open URL 'https://cran.rstudio.com/src/contrib/PACKAGES'
Warning in install.packages :
  package ‘RcppEigen’ is not available for this version of R

A version of this package for your version of R might be available elsewhere,
see the ideas at
https://cran.r-project.org/doc/manuals/r-patched/R-admin.html#Installing-packages
Warning in install.packages :
  unable to access index for repository https://cran.rstudio.com/bin/macosx/big-sur-arm64/contrib/4.2:
  cannot open URL 'https://cran.rstudio.com/bin/macosx/big-sur-arm64/contrib/4.2/PACKAGES'

我剛剛更新了我的 R 版本，所以所有的包都被手動復制到了新的庫中。 當我嘗試加載以前安裝的包時，再次發生錯誤，如下所示：

# load a package
library(StanHeaders)

# error message
Error: package or namespace load failed for ‘StanHeaders’:
 .onLoad failed in loadNamespace() for 'RcppParallel', details:
  call: dyn.load(file, DLLpath = DLLpath, ...)
  error: unable to load shared object '/Library/Frameworks/R.framework/Versions/4.2-arm64/Resources/library/RcppParallel/libs/RcppParallel.so':
  dlopen(/Library/Frameworks/R.framework/Versions/4.2-arm64/Resources/library/RcppParallel/libs/RcppParallel.so, 0x0006): Library not loaded: /Library/Frameworks/R.framework/Versions/4.1-arm64/Resources/lib/libR.dylib
  Referenced from: /Library/Frameworks/R.framework/Versions/4.2-arm64/Resources/library/RcppParallel/libs/RcppParallel.so
  Reason: tried: '/Library/Frameworks/R.framework/Versions/4.1-arm64/Resources/lib/libR.dylib' (no such file), '/usr/lib/libR.dylib' (no such file)

希望有人可以幫助解決這兩個問題！ 謝謝！

Answer 1

在全局選項中禁用安全下載設置可能會解決問題。 可以在此鏈接中找到其他一些解決方案。