我尝试从GitHub安装软件包，并且在R中使用了以下代码：

install.packages("devtools")
library(devtools)
install_github("Displayr/flipPlots")

但是我得到了以下错误：

 Error: Failed to install 'flipPlots' from GitHub:
Failed to install 'flipTransformations' from GitHub:
Failed to install 'flipFormat' from GitHub:
Failed to install 'formattable' from GitHub:
(converted from warning) cannot remove prior installation of package ‘Rcpp’

我该如何解决这个问题？

编辑。在注释中包含建议之后，我执行了以下步骤：

install.packages("Rcpp")

但是我获得了

Error: Failed to install 'flipPlots' from GitHub:
Failed to install 'flipTransformations' from GitHub:
Failed to install 'flipFormat' from GitHub:
Failed to install 'formattable' from GitHub:
(converted from warning) cannot remove prior installation of package ‘rlang’

然后：

install.packages("rlang")

和

Error: Failed to install 'unknown package' from GitHub:
Failed to install 'unknown package' from GitHub:
Failed to install 'unknown package' from GitHub:
(converted from warning) cannot remove prior installation of package ‘backports’

最后我安装了backports软件包，但获得了以下新错误：

Error: Failed to install 'unknown package' from GitHub:
 cannot open URL 
'https://api.github.com/repos/Displayr/flipPlots/contents/DESCRIPTION?ref=master'