加载Swirl包时出现问题

Question

我能够安装swirl包，但当我给出库(swirl)命令时，出现以下错误：

Error: package or namespace load failed for ‘swirl’ in loadNamespace(j <- i[[1L]], c(lib.loc, .libPaths()), versionCheck = vI[[j]]):
 there is no package called ‘crayon’

所以我尝试安装蜡笔包，结果显示：

* installing *source* package 'crayon' ...
** package 'crayon' successfully unpacked and MD5 sums checked
Warning in file(file, if (append) "a" else "w") :
  cannot open file 'C:/Users/Tams/Documents/R/win-library/3.4/crayon/DESCRIPTION': No such file or directory
Error in file(file, if (append) "a" else "w") : 
  it's not possible to open the conection
ERROR: installing package DESCRIPTION failed for package 'crayon'
* removing 'C:/Users/TAÍS/Documents/R/win-library/3.4/crayon'
Warning in install.packages :
  running command '"C:/PROGRA~1/R/R-34~1.1/bin/x64/R" CMD INSTALL -l "C:\Users\TAÍS\Documents\R\win-library\3.4" C:\Users\TAS~1\AppData\Local\Temp\Rtmpc9eX85/downloaded_packages/crayon_1.3.4.tar.gz' had status 1
Warning in install.packages :
  installation of package ‘crayon’ had non-zero exit status

如何解决此问题并加载swirl包？

Answer 1

尝试直接从Github加载它，看看它是否解决了问题。在此之前，您可能希望重新启动R实例，以确保一切正常。

devtools::install_github("r-lib/crayon")
library(crayon)