org-ref-latex-get-bibliography doesn't work in multi-file latex project

[ahmed-shariff]

The org-ref-latex-get-bibliography currently only seems to be working when the \bibliography{} entry is in the corresponding. As a temporary workaround, I have advised it to use the systemwide bib file when this returns nil. This might not be the intended behavior of the implementation. A more reasonable solution might be to look in the master file as well?

[jkitchin]

That is by design I think. Without an explicit bibliography, the latex file can't build.

It could be reasonable to look in the master file too. you could create a pull request for that.