R中调用TSA包时报错：
Loading required package: leaps
Loading required package: locfit
locfit 1.5-9.1   2013-03-22
Loading required package: mgcv
This is mgcv 1.7-24. For overview type 'help("mgcv-package")'.
Loading required package: tseries
Error in loadNamespace(j <- i[[1L]], c(lib.loc, .libPaths()), versionCheck = vI[[j]]) :
  there is no package called ‘quadprog’
Error: package ‘tseries’ could not be loade

已经安装TSA、leaps、locfit、MASS、mgcv、tserires包，不知道是什么原因出错。谢谢