cv2.error: opencv(4.2.0) c:\projects\opencv-python\opencv\modules\imgproc\src\color.cpp:182: error: (-215:assertion failed) !_src.empty() in function 'cv::cvtcolor'
Warning: Use of undefined constant vNumber - assumed 'vNumber' (this will throw an Error in a future version of PHP) in C:\xampp\htdocs\HelloWorld\vorbereitung.php on line 112
opencv(4.5.1) c:\users\appveyor\appdata\local\temp\1\pip-req-build-kh7iq4w7\opencv\modules\imgproc\src\resize.cpp:4051: error: (-215:assertion failed) !ssize.empty() in function
Fatal error: Composer detected issues in your platform: Your Composer dependencies require a PHP version ">= 7.3.0". You are running 7.2.19. in C:\php\largon\laragon\www\medmazza-simple-master\vendor\composer\platform_check.php on line 24