OLS error

Hi,
  I have 142 observations off different variables and I'm trying to do a
OLS. And I get this error. Any Ideas ?

f <- ols(lnmigr3~popden78+income+modern+spareha+rain)

Error in La.chol2inv(x, size) : size cannot exceed nrow(x) = 1


  D.


-----------------------------------------
Stay ahead of the information curve.
Receive GIS news and jobs on your desktop daily.
Subscribe today to the GIS CafeNews newsletter.
[ http://www10.giscafe.com/nl/newsletter_subscribe.php ]
It's informative and essential.