Getting HRESULT E_FAIL error when trying to open database connection via connection file

Question

I developed an Addin in ArcGIS Pro 2.5 where I am using connection files to open database connections at runtime. So far that worked perfect. The connection files are stored on a network drive, referenced in the Addin with absolute paths.

DatabaseConnectionFile connectionFileValidering = new DatabaseConnectionFile(new Uri(AppSettings.Default.sde_validation));

Now that I am doing some maintenance on the Addin I am running into the following error when trying to open the enterprise database:

Database test_db = new Database(connectionFileValidation);

I am getting the following error.

'Database test_db = new Database(connectionFileValidation)' threw an exception of type 'ArcGIS.Core.Data.GeodatabaseException' Data: {System.Collections.ListDictionaryInternal} HResult: -2146233088 HelpLink: null InnerException: {"Error HRESULT E_FAIL has been returned from a call to a COM component."} Message: "A geodatabase exception has occurred." Source: "ArcGIS.Core" StackTrace: " at ArcGIS.Core.Data.Database..ctor(DatabaseConnectionFile databaseConnectionFile)" TargetSite: {Void .ctor(ArcGIS.Core.Data.DatabaseConnectionFile)}

With respect to the error message I found some stuff that is not related to ArcGIS, but did not help either.

Can you point me the direction of a solution?

Answer 1

I may have had the same problem in QGIS, where I had to use following:

db.setConnectOptions("service=yourservice")

Maybe it will help to find the solution.