Failure in creation of feature class: Unable to create object class extension COM component

ThomasNielsen — Thu, 14 Feb 2019 08:18:03 GMT

Hello GeoNet,

I have an issue with registering feature classes. We have created a Feature Class and registered the DLL through “ESRIRegAsm.exe”, and it appears in ArcCatalog:

But when I try to create the Feature Class, I get the following error:

Which isn't very helpful, unfortunately.

The odd thing is, that we have another trigger registered on another Feature Class, that works as expected. And the new trigger is based on a copy of the old trigger's code (with changed GUID's).

We are running ArcGIS 10.5, and are developing our feature class in .NET.

The steps I have done so far

I have tried to add the feature class to the component category using categories.exe
Registered it using ESRIRegAsm.exe for both Desktop and Engine.
Checked that there are .ecfg config files - and there are.
Checked that the CLSID's appear in the windows registry.

I have attached the essential parts of our trigger as an attachment.

Any help would be greatly appreciated, as we are stuck on this.

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Failure in creation of feature class: Unable to create object class extension COM component