Faild \cite{} and \ref

[Paren7]

I just wrote a paper via templete IEEE Trans. And the \cite{} and \ref are useless, and there is shown as a ?

[let-def]

Thanks for your report. This can indeed be a problem.
To handle citations and references, the expected workflow is to reuse auxiliary files produced by a normal LaTeX build.

However, TeXpresso uses Tectonic packages from 2022. In TeXlive 2024, some important packages have been updated which break compatibility.

A workaround to get working citations is to build your document with tectonic and keep intermediate files, e.g. tectonic -X compile -k myfile.tex.
This is the best I can suggest at the moment. I would like to reintroduce TeXlive compatibility, but I have no time for this at the moment and I keep delaying this work. Hopefully in Q1 or Q2 2025.