During the install of Revit 2020 you receive a dialog showing an error 0
Cause:
This may happen when using the "Install now" or "Install" button to install the software.
Solution:
It just may be that you need to use another method for install.
Download it and install from the download.
Autodesk shows you a few methods here:
https://www.autodesk.com/support/download-install/individuals/download/download-methods
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