更新 R Studio 后安装包不起作用

Question

我最近更新了 RStudio，但无法安装或更新任何软件包。请参阅下面的错误。关于如何解决这个问题有什么建议吗？我的 RStudio 版本是：

               _                           
    platform       x86_64-apple-darwin15.6.0   
    arch           x86_64                      
     os             darwin15.6.0                
   system         x86_64, darwin15.6.0        
    status                                     
   major          3                           
   minor          5.1                         
   year           2018                        
  month          07                          
  day            02                          
svn rev        74947                       
  language       R                           
 version.string R version 3.5.1 (2018-07-02)
nickname       Feather Spray   

     error below----
ERROR: compilation failed for package ‘miceadds’
   * removing 
 ‘/Library/Frameworks/R.framework/Versions/3.5/Resources/library/miceadds’
 * restoring previous 
 ‘/Library/Frameworks/R.framework/Versions/3.5/Resources/library/miceadds’
 Warning in install.packages :
 installation of package ‘miceadds’ had non-zero exit status