Via the Revit Server REST API, developers can get the folders and model files’ information in the Revit Sever.
Recently we received the report that developers cannot get the thumbnails of Revit models in the Revit Server. The REST API returns this error message: System.Net.WebException: The remote server returned an error: (404) Not Found.
However developers can read other file information using the REST API.
This is because of the lacking of the Microsoft Visual C++ 2010 redistributable in the computer. Retrieving thumbnail depends on this compoment. You can download the X86/ 64 from the Microsoft Website, and install that to solve the issue.