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我开始使用 R。当我尝试加载包Rcmdr时,出现此错误

Loading required package: RcmdrMisc

Loading required package: car

Error in loadNamespace(j <- i[[1L]], c(lib.loc, .libPaths()), versionCheck = vI[[j]]) : 
  there is no package called ‘nloptr’

Error: package ‘car’ could not be loaded

请帮助我,我需要这个程序用于大学课程。

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