Error using ipop package with R
 

I have installed and uploaded kernlab in R. I am getting the following error. I could not find documentation on fixing it. Where can I get more info?

Also, how can I set the upper bound vector to infinity in R?

Thanks,
Ganesh

> ipop(c, H, A, b, l, u, r)
Error in (function (classes, fdef, mtable) :
unable to find an inherited method for function ‘ipop’ for signature ‘"function", "data.frame"’