Btukfyl

I am trying to construct a report document that consists of a series of documents that can also be compiled individually. In these subfile documents I have been using bibentry{} from the bibentry package to allow me to print a full citation in text.

Compiling the subfile documents individually works fine, and if I comment out the "bibentry" line in the subfile the main document is fine, but compiling the main file with the bibentry in the subfile fails and I receive the error

[! LaTeX Error: Cannot be used in preamble.]

Any advice would be welcomed. I'm not sure where to start with my troubleshooting.

Thanks.

The following files provide a minimal working example:

File Name: MainDocument.tex

documentclass{report}

usepackage[margin=0.5in]{geometry}



%For inclusion of subfiles

    usepackage{subfiles}



%Path to the directory containing: "MainDocument.tex", "SubfileDocument.tex", and "Bibliography.bib"

        newcommand{Troubleshooting}{Path to Troubleshooting Directory/MWE_SubfilesWithBibEntries/}



%%Bibliography

%%       %Allows display of a full bib entry using the command bibentry{citationkey}

       usepackage{bibentry}

       nobibliography*



        newcommand{Bibliography}{Bibliography.bib}

        defbiblio{bibliographystyle{siam}bibliography{TroubleshootingBibliography}}



%Document Information

title{This Is a Document}



begin{document}

chapter{First}newpage

subfile{Troubleshooting SubfileDocument.tex}newpage

bibliographystyle{siam}

bibliography{TroubleshootingBibliography}

end{document}

File Name: SubfileDocument.tex

documentclass[Path to to troubleshooting directory /MWE_SubfilesWithBibEntries/MainDocument.tex]{subfiles}



begin{document}

section{first Section}

Interesting words here that describe something cool.\

Print text of relevant source:\

bibentry{testcitation}\

Cite relevant source cite{testcitation}

biblio

end{document} 

File Name: Bibliography.bib

@article{testcitation,

abstract = {Words and more word},

author = {John Doe},

doi = {},

file = {},

journal = {Journal of Amazing Things},

keywords = {},

mendeley-tags = {},

month = {aug},

number = {8},

pages = {1000-1005},

publisher = {Publisher of Cool Things},

title = {{Article of Cool Things}},

url = {},

volume = {7},

year = {1995}

}