Potential error in Raspberry Pi Pico (RP2040) deployment tutorial

I follow this documentation line by line, but after compiling and imaging my pico with the generated app.uf2 file, the pico is not responding at all. Even the LED is not blinking.

Project ID:

Context/Use case:
I followed the tutorial step-by-step except that I made a copy of the extracted .zip file (of the library) in the source directory.