Unable to use Knitr to pdf

I am unable to publish my R Markdown to pdf. The final output file is file_name.knit.md. I even downloaded the tex which it asked me to, yet the issue persists.

What could be the issue?

Can you give more detailled on what you tried ?

What is the content of your document ? Which is the format used ? (pdf_document() I suppose).
Have you a LaTeX distribution installed ? (preferably TinyTeX - 1.2 Install LaTeX (TinyTeX) for PDF reports | R Markdown Cookbook) Is there an error when you render ?

Currently you did not give any informations and there could be plenty.