install.packages("AER")
also installing the dependencies ‘nloptr’, ‘pbkrtest’, ‘lme4’, ‘car’
Warning message in install.packages("AER"):
“installation of package ‘nloptr’ had non-zero exit status”Warning message in install.packages("AER"):
“installation of package ‘lme4’ had non-zero exit status”Warning message in install.packages("AER"):
“installation of package ‘pbkrtest’ had non-zero exit status”Warning message in install.packages("AER"):
“installation of package ‘car’ had non-zero exit status”Warning message in install.packages("AER"):
“installation of package ‘AER’ had non-zero exit status”Updating HTML index of packages in '.Library'
Making 'packages.html' ... done
what should I do for this?