After I update bioconductor to version 3.5 (BiocInstaller 1.26.0), I get errors with the locfit function in the locfit package, even though locfit package is not updated.

Below is the test example of locfit:

> data(ethanol, package="locfit")
> fit <- locfit(NOx ~ E, data=ethanol)
Error in .C("slocfit", x = as.numeric(x), y = as.numeric(rep(y, length.out = n)),  :
  "slocfit" not available for .C() for package "locfit"

I did not meet this error before I updated (version 3.3). Any solution to this problem?

Many thanks,

Guofeng,

Just try reinstalling it. Whenever you upgrade R you should reinstall all of your packages ...