What’s wrong with the prompt “Can not open correct file” after opening the software EzCad?

in FAQs about Laser Marking, Calibration, Correct File, EzCad, Lens Correction

It is because there is no correction file and the “Use the correction file” in the F3 parameter is checked. If there is a correction file, please select the correct path; if there is no one, you can leave “Use the correction file” unchecked.

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