cross reference errors on pdf build

[NewGraphEnvironment]

error on pdf build is

6: The label(s) fig:photo-198215-02 not found 
7: The label(s) fig:photo-198215-06, fig:photo-198215-05 not found 
8: The label(s) fig:photo-198216-rack not found 

need to be changed, removed or conditional

ex.

r if(gitbook_on){knitr::asis_output("(Figures \\@ref(fig:photo-198215-03) - \\@ref(fig:photo-198215-06)).")}else(knitr::asis_output("(Figure \\@ref(fig:photo-198215-d02))."))

[NewGraphEnvironment]

Error: Failed to parse the inline R code: r if(gitbook_on){knitr::asis_output("Figure \\@ref(fig:photo-198215-06).)")}else(knitr::asis_output("Figure \\@ref(fig:photo-198215-d04)).")

looks like a weird period in there perhaps

[NewGraphEnvironment]

removed for time being