“Illegal, another \bibstyle command“ in Ubuntu20.04

[liuzifengsjtu]

When I use the Elegant Paper in Ubuntu 20.04 , and I clone the code and try to make a PDF by compile it XeLaTeX -> BibLaTeX -> XeLaTeX*2. But an error happened when I use the Bibtex The error gives Illegal, another \bibstyle command and I find in the automatically formed file "elegantpaper-cn.aux", the line 18,19 is \bibstyle{gbt7714-unsrt} \bibstyle{gbt7714-author-year} Acturally, it's double defined. So how can I avoid this?

[sikouhjw]

用 texlive 2021