BibTeX, biblatex and biber ⇒ A question with bibliography

[fankun]

Hi guys,

I have a problem with the bibliography. All the reference numbers become question marks. Do you know how to fix this?

[Bartman]

Without a minimal working example, we can only guess. Did you run all programs in the correct order that you need to create a bibliography? The process should be explained in every LaTeX introduction.

[fankun]

Hi Bartman,

Thanks for your reply. I tried to combine the packages. It does not work. Do you have other suggestions?

[Ijon Tichy]

→ Question mark or bold citation key instead of citation number

If this does not help, show us a minimal working example, the *.blg file and the *.log file and tell us the compilation steps you've used.

[fankun]

Hi Ijon,

I uploaded related files. Looking foreward tp hearing from you.

[fankun]

Hi,

I am using overleaf. When I switch to Fast mode under the Recompile menu, then recompile, then switch back to normal, and then recompile. I works now. I do not know why.