============== example_cpp_logistic_regression start ================
[ WARN:0@0.002] global samples.cpp:61 findFile cv::samples::findFile('data01.xml') => '/usr/share/OpenCV/samples/data/data01.xml'
**********************************************************************
/usr/share/OpenCV/samples/data/data01.xml contains digits 0 and 1 of 20 samples each, collected on an Android device
Each of the collected images are of size 28 x 28 re-arranged to 1 x 784 matrix
**********************************************************************
loading the dataset...read 40 rows of data
training/testing samples count: 20/20
Detected locale "C" with character encoding "ANSI_X3.4-1968", which is not UTF-8.
Qt depends on a UTF-8 locale, and has switched to "C.UTF-8" instead.
If this causes problems, reconfigure your locale. See the locale(1) manual
for more information.
terminate called after throwing an instance of 'cv::Exception'
  what():  OpenCV(4.11.0) /usr/src/debug/opencv/4.11.0.imx/modules/ml/src/lr.cpp:129: error: (-5:Bad argument) data should have at least 2 classes in function 'train'

/mnt/nfs/L6.12.3_1.0.0_Q1_RC1/vte_mx95/testcases/bin/gpu_opencv_test.sh: line 526: 19683 Aborted                 (core dumped) example_cpp_logistic_regression
wait 15 secs ...
kill: usage: kill [-s sigspec | -n signum | -sigspec] pid | jobspec ... or kill -l [sigspec]
TFAIL: The app example_cpp_logistic_regression is not killed successfully in 60 seconds, will exit test.
Following apps failed, please check:
example_cpp_logistic_regression