Here you will find an explanation and best practices for solving Unsupported Data related synchronization errors.
Category: Unsupported
"Unsupported" typically refers to a situation where the selected Synchronizer does not support the data or file format you're trying to work with.
Info message: "Permeability property value 55.400 ng/(Pa·s·m²) of Permeability dimension is ignored due to disputable Revit units."
Issue:
The permeability property value for the element is missing in the iTwin Viewer.
Cause:
In Autodesk Revit, permeability values are not a direct parameter or explicitly calculated property. Instead, Revit uses the concept of materials and their properties to simulate the behavior of real-world materials in a building environment. Permeability, in the context of building materials, typically refers to how easily water or other fluids can pass through them. According to Autodesk Revit Architecture Forum, this value may not always be calculated correctly, and for this reason, it is ignored during synchronization to the iModel. Keep in mind that the availability of certain features and tools in Revit can change with different versions, so the calculation of this value in Revit may be improved and included in the iTwin synchronization functionality in the future.
Solution:
This message is for your information only. We always recommend calculating permeability based on specific building parameters.
Please refer to Bentley support if you're sure this is wrong. If you have comments about the software (features or improvements you’d like to see), please visit the new iTwin Services Ideas portal to let us know. You can also vote on ideas others have posted, so be sure to let us know if an idea you see there is important to you.
Warning message: "Shared cell exploded due to non-uniform scale. Please consider changing the shared cell named [Name] to have a uniform scale."
Issue / Cause:
Shared cells in MicroStation significantly optimize DGN files through single-time storage of cell definitions, enabling efficient element management and decreasing file size. For comprehensive information on shared cells in MicroStation, please consult Bentley Systems' documentation. When synchronizing designs into iModels, it is essential to understand that iModels employ geometryparts as the equivalent of shared cells, yet they do not accommodate non-uniform scale geometry parts. This constraint necessitates the conversion of such shared cells into individual geometry elements to preserve data integrity and mitigate impacts on performance and workflows.
Solution:
To enhance iModel performance, it is advisable to employ shared cells with a uniform scale.
Warning message: "Element contains external geometry data which is not supported currently"
Issue:
Coming soon
Cause:
Coming soon
Solution:
Coming soon