Could not build calibration graph about anipose HOT 1 OPEN

Hi @LWitter

I faced the same issue with my camera setup. It might be a shot in the dark but try the following:
1.) Go to the path, where the source-files of the aniposelib library are located
2.) Open the "cameras.py" file
3.) Scroll down to the function "calibrate_rows()" (around line 1550 in my case)
4.) Increase the minimum number of simultaneously detected object points per frame (in my case, "10" instead of "7" worked for all calibrations that failed previously in a similar fashion to your example)

--> The value to change can be found in the list comprehension that results in the variable "mixed" (see comment in attached image).

I am currently working on improving certain code sections for my specific setup (around 10 cameras). I will share my improvements as soon as I reach a stable, reliable version.

I hope that helps.

from anipose.