Error levels for DataExchangeLog 
   Namespace:   Autodesk.Revit.DB  
  Assembly:   RevitAPI  (in RevitAPI.dll) Version: 16.0.0.0 (16.0.0.0) 
  Since:  2016 
  Since:  2016 
Syntax
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| Visual Basic | 
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| Visual C++ | 
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Members
| Member name | Description | 
|---|---|
| Info | Informational message, such as successful creation fo a face, edge or a solid. | 
| Warning | A potential problem. The converted data should be carefully examined and/or compared to the source data | 
| Error | A problem. The converted data should be carefully examined and/or compared to the source data. The application may want to cancel the conversion process. | 
| FatalError | A serious problem that makes further data conversion pointless. The conversion process will be cancelled. |