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AutoCAD Based HydraHEAD (Ribbon/Toolbar/Location)
Description:
User didn't have a PDF viewer on the computer, and it was defaulting to using Microsoft Edge (web browser to view the PDF).
User didn't have a PDF viewer on the computer and it was defaulting to using Microsoft Edge (web browser to view the PDF).
Install a program dedicated to viewing PDF files, and it should make the error go away.