[Lazarus] Why doesn't my project compile anymore?

[Arí Ricardo Ody]

I extracted a 7zip backup of the directory where a Lazarus project was,
opened it in the IDE and pressed ctrl-F9. See below what appeared in the
IDE message window. (Lazarus IDE v3.4)

---------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Compilar projeto, Alvo:
D:\testes_pascal\transmissao_visual\gerastringvisual.exe: Código saída 1,
Erros: 2
Error: No known file format detected for file 'gerastringvisual.res'
gerastringvisual.lpr(24,1)Error: Error while compiling resources -> Compile
with -vd for more details. Check for duplicates
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------

I confess that occurrences like these leave me completely at a loss as to
what to do.

Note that I only extracted the contents of the 7zip file and compiled it. I
have done this many, many times in my life. There is nothing that leads me
to believe that saving a backup in a 7zip file and then extracting it will
lead to corruption of the saved and extracted data.

Could someone please help me resolve this?

Greetings from São Paulo - Brazil

Arí Ricardo
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