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Hi Stephan, i tried it, but the problem continues. I also tried to reinstall both Lyx and Miktex but i'm still having the same issue.

I already installed natbib using miktex, and refreshed the database but the problem remains.

Hi everybody, I'm new to LATEX and I'm using a template my teacher gave me. When I open it using LYx I get the error: "Natbib.sty not found", I already used de Miktex console and installed the natbib package but the problem continues.