Not enough valid windows to create a fit error

[DianZhang]

Great work and thanks for sharing.

I try to run this project with an video and it gave the following error.
The sample video is from http://www.robesafe.uah.es/personal/eduardo.romera/uah-driveset/ dataset.
D1/20151110175712-16km-D1-NORMAL1-SECONDARY/20151110175712-16km-D1-NORMAL1-SECONDARY.mp4
Guess it is not detecting a line then give up :)

File "find_lane.py", line 197, in find_lines
assert len(win_left_valid) >= 3 and len(win_right_valid) >= 3, 'Not enough valid windows to create a fit.'
AssertionError: Not enough valid windows to create a fit.

[peter-moran]

In a way, yes. One of the steps is to take a curve fit between all reliable tracking points on the lane line. However you can get into a situation where there are less than 3 points, which you can't curve fit using the model in the system, so it fails. I never wrote any workarounds for that.