This is about the first file U8g2 for practical assignment 1 After uploading the file, it just says done uploading and nothing happens to the script or the display. I have tried multiple times and it won't change.
Double or triple-check your wiring. Always check the labels of the pins yourself, and connect GND to GND, VCC to 5V, SCL to SCL (A5) and SDA to SDA (A4). If it still does not work post an image of the breadboard (top view) here as an answer.