Hi Running Lyx 2.0.3 on WinXP witn Knitr results in the following error
LyX: Cannot convert file An error occurred while running: Rscript --verbose --no-save --no-restore "C:/Program Files/Lyx20/bin/../Resources/scripts/lyxknitr.R" "C:/Documents and Settings/me/Local Settings/Temp/lyx_tmpdir.Hp4948/lyx_tmpbuf2/""Paper2.Rnw" ""C:/Documents and Settings/me/Local Settings/Temp/lyx_tmpdir.Hp4948/lyx_tmpbuf2/""Paper2.tex" ISO-8859-a5 "M:/REPOSITORY/Lyx_Paper2/"