Hi, Francois,
Thank you for the patient.
First of all, I tested the script with 2018b and 2019a, the errors are as same as the previous version. As shown in the following figure.
And then, I think maybe it's because there are some problems with the lib. I searched the forum of matlab, and found this: https://ww2.mathworks.cn/matlabcentral/answers/241374-libgl-error-persists-and-i-ve-tried-everything
But, I modified the lib in Linux system as the suggestions. The errors are still there. (it seems like a little bit different with the previous ones Before I modified these libs, the errors had been the same with those in matlab 2018b and 2019a). I checked my server and found there are no graphic card and graphic driver. So, Is the importing procedure involved with some GUI processing?
