Julien
>> > The error message that you get should have pointed you to Section 3.1.2.3 > of the User's Guide. The message says that a literate->latex converter is > missing (although not stated, usually this would be noweave), it also says > that the LaTeX package noweb.sty is missing. > > Is the error message not correct? i.e., do you have "noweave" and > "noweb.sty" installed in a useful place in your computer? It might be that > LyX is wrong here. > > When LyX is right, you should follow the instructions in the User's Guide > to correct the problem. If you can, please provide feedback on the text in > Section 3.1.2.3 (and maybe some suggested replacement text) so that we can > change it and make it more understandable. > Thanks for the follow up. As you will now have seen, none of these things were in fact missing. The error was caused by the path in the Lyx doc pointing to the text file used by R, which was pointing somewhere that Lyx on the Mac didn't understand. Changing the path has fixed everything so inspite of the error message the missing elements were not in fact missing. I did read the section in the help file and the follow up in the customisation guide. I think you have identified my key area of confusion, for as you can see in subsequent posts, based on those instructions I was looking for a Latex package called "literate" to install, which I couldn't find. Graham
