ValueError in DetectBall.detect_ball_position(Image) of BallTracker.py

[sarveshpro]

I get the Following ValueError while running TableSoccer.py

log -
PS I:\TableSoccerCV> python TableSoccer.py Session started 192.9516106247902 Please put the ball an the center spot! Calibration starts - 5 seconds for positioning... 1.059940684013998 Calibration succeeded 6.306161969713371 Traceback (most recent call last): File "TableSoccer.py", line 140, in <module> DetectBall.detect_ball_position(Image) File "I:\TableSoccerCV\BallTracker.py", line 110, in detect_ball_position im2, contours, hierarchy = cv2.findContours(mask, cv2.RETR_TREE, cv2.CHAIN_APPROX_NONE) ValueError: not enough values to unpack (expected 3, got 2)