[R] Running a Logit Model in R

[Mathew, Abraham T]

I'm an R newbie and had the following question. I'm trying to run a logit model because I have a dependant variable that is a factor with three levels. Each of my independent variables are factor variables and have two or more levels, which is why I'm unsure about the error.
 
regone <- glm(data96$RV961327 ~ data96$RV960605 + data96$RV960610 + data96$RV960337 +     data96$RV960385 + data96$RV960417 + data96$RV960615 + data96$RV960698 + data96   $RV960714 + data96$RV961145 + data96$RV960067 + data96$RV960702, family=binomial(logit))
 
This produces the following error. 
 
Error in `contrasts<-`(`*tmp*`, value = "contr.treatment") : 
  contrasts can be applied only to factors with 2 or more levels
 
 
Help,
Abraham M.