CoordinationModelDB.pdb not loaded

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07-29-2020
06:40 AM
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Hey !
A'm new in Revit API and in C#.
I'm trying to open Revit Model from MS Visual Studio :
UIApplication uiapp = commandData.Application;
UIDocument uidoc = uiapp.OpenAndActivateDocument(@"C:\Users\PSPOD\Desktop\models\PM1.rvt");
Autodesk.Revit.ApplicationServices.Application app = uiapp.Application;
Document doc = uidoc.Document;
When i launch it , i got an Exception:
System.NullReferenceException" in CoordinationModelDB.dll
How to fix it ?