OpenCV 3.4.2 error

[impactcolor]

Hi any idea why I get this error?

When I run:
python block_shuffle.py --input in/gibson.jpg --output out/block_gibson.jpg --model models/01/model.pb --gpu 0

cv2.error: OpenCV(3.4.2) /opt/concourse/worker/volumes/live/9523d527-1b9e-48e0-7ed0-a36adde286f0/volume/opencv-suite_1535558719691/work/modules/core/src/matrix_operations.cpp:63: error: (-215:Assertion failed) src[i].dims <= 2 && src[i].rows == src[0].rows && src[i].type() == src[0].type() in function 'hconcat'