[R] mvProbit error message

[Betty Betty]

Dear All,
I am running the mvProbit model to estimate five equation probit models. In
my data all the dependent variables are dichotomous with values 0/1 and
lables TRUE/FALSE. The explanatory variables are composed of catagorical
and countinous variables. I specified the model as follows

Result<-mvProbit( cbind(y1,y2,y3,y4,y5) ~ x1+x2+x3+......+.x11,data=mydata)
summary(Result)

However, i get an error message "...Error in mvProbit(cbind(y1,y2,y3,y4,y5)
~:all dependent variables must be either 0,1,TRUE, or FALSE)

I have checked all the dependent variables and it is coded 0/1 and lables
TRUE/FALSE.
Ofcourse there are two missing observation and I attempted to handle that
with na.action=na.omit but even that didnt solve the problem. My second
attempt was to tell r that the dichotomous dependent variables and the
catagorical independent variables as factor as follows

mydata$y1<-factor(mydata$y1)
...
...
..
.
mydata$x3<-factor(mydata$x3)
But still problem not solved. How would I solve this problem?
Thank you!

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