Not enough views left for proper calibration! GoPro 13 in Linear mode

[taomiao]

Camera calibration failed！

python3 python/run_gopro_calibration.py --path_calib_dataset ../Videos/calib_videos/ --path_to_build ../OpenImuCameraCalibrator/build/applications/ --checker_size_m 0.022 --camera_model PINHOLE --gravity_const 9.780

Calibrating camera. View: 0/850 initialized for calibration. View: 100/850 initialized for calibration. View: 200/850 initialized for calibration. View: 300/850 initialized for calibration. View: 400/850 initialized for calibration. View: 500/850 initialized for calibration. View: 600/850 initialized for calibration. View: 700/850 initialized for calibration. View: 800/850 initialized for calibration. Using 110 views for camera calibration. Not enough views left for proper calibration! E1204 15:57:41.313248 3188123 camera_calibrator.cc:348] Calibration failed. Focal Length:1px Principal Point: 479.986/269.952px. Finished camera calibration.

My GoPro setting is (16:9|1080|30|L)