Upon execution, the ODIS client contacts Autodesk servers to retrieve a "manifest." This manifest is an XML or JSON file that lists all available components, updates, and language packs associated with the selected product.
Newer Autodesk software (like Revit 2024 or AutoCAD 2025) uses the On-Demand Install Service (ODIS) . If this service gets corrupted, your installation will fail before it even starts. The Fix: download autodesk on-demand install service -odis-