错误：“tidyverse”中没有名为“reprex”的包或命名空间加载失败

Question

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

我正在使用这个版本的R版本4.0.3 (2020-10-10)，我也试图安装这个库"reprex“，但我有

install.packages("reprex")
also installing the dependency ‘withr’

trying URL 'https://cran.rstudio.com/bin/macosx/contrib/4.0/withr_2.4.1.tgz'
Warning in install.packages :
  cannot open URL 'https://cran.rstudio.com/bin/macosx/contrib/4.0/withr_2.4.1.tgz': HTTP status was '404 Not Found'
Error in download.file(url, destfile, method, mode = "wb", ...) : 
  cannot open URL 'https://cran.rstudio.com/bin/macosx/contrib/4.0/withr_2.4.1.tgz'
Warning in install.packages :
  download of package ‘withr’ failed
trying URL 'https://cran.rstudio.com/bin/macosx/contrib/4.0/reprex_1.0.0.tgz'
Warning in install.packages :
  cannot open URL 'https://cran.rstudio.com/bin/macosx/contrib/4.0/reprex_1.0.0.tgz': HTTP status was '404 Not Found'
Error in download.file(url, destfile, method, mode = "wb", ...) : 
  cannot open URL 'https://cran.rstudio.com/bin/macosx/contrib/4.0/reprex_1.0.0.tgz'
Warning in install.packages :
  download of package ‘reprex’ failed

我有macOs大苏尔

Answer 1

我刚刚在MacOS大苏尔也有同样的问题。它现在确实起作用了。我安装了ggplot2 install.packages("ggplot2")，它也安装了r，这是以前找不到的包。

还安装依赖项“withr”

trying URL 'https://cran.rstudio.com/bin/macosx/contrib/4.0/withr_2.4.1.tgz'
Content type 'application/x-gzip' length 205896 bytes (201 KB)
==================================================
downloaded 201 KB

trying URL 'https://cran.rstudio.com/bin/macosx/contrib/4.0/ggplot2_3.3.3.tgz'
Content type 'application/x-gzip' length 4068756 bytes (3.9 MB)
==================================================
downloaded 3.9 MB

在那之后，我又安装了tidyverse，问题解决了。

> install.packages("tidyverse")
also installing the dependency ‘reprex’

trying URL 'https://cran.rstudio.com/bin/macosx/contrib/4.0/reprex_1.0.0.tgz'
Content type 'application/x-gzip' length 478248 bytes (467 KB)
==================================================
downloaded 467 KB

trying URL 'https://cran.rstudio.com/bin/macosx/contrib/4.0/tidyverse_1.3.0.tgz'
Content type 'application/x-gzip' length 433049 bytes (422 KB)
==================================================
downloaded 422 KB

> library(tidyverse)
── Attaching packages ─────────────────────────────────────────────────────────────────────── tidyverse 1.3.0 ──
✓ ggplot2 3.3.3     ✓ purrr   0.3.4
✓ tibble  3.0.5     ✓ dplyr   1.0.3
✓ tidyr   1.1.2     ✓ stringr 1.4.0
✓ readr   1.4.0     ✓ forcats 0.5.1

我不确定解决方案是否确实安装了ggplot2。这是我第一次使用R. (我在edX上学习数据科学课程)

干杯!

• Enzo