File not shared

xml file is not shared how will I download it

Hello @kshitijain05_81c030a813eb8c76,
The best practice is to pass the full qualified path of the cascade file, If you are not able to locate the cascade files bundled with opencv.
But you can download from the below link the required .xml file in the same folder in which the program is being executed.
https://github.com/opencv/opencv/tree/master/data/haarcascades

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