01. I get the error “Add-on B1 Usability Package: Add-on %s – uninstall failed."
This error occurs if the user during an uninstall/install of the add-on does not have the correct windows permissions (read and write to the installation folder). See more under Install: I get the error: “Add-on B1 Usability Package: Add-on %s – uninstall failed."
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