Error instancing a FileGDBWorkkspaceFactotyClass

Question

Hi,

With ArcGIS Desktop 10, Sometimes this line of code:IWorkspaceFactory factory = new FileGDBWorkspaceFactoryClass();

throws this exception:Unable to cast object of type System.__ComObject to type ESRI.ArcGIS.DataSourcesGDB.FileGDBWorkspaceFactoryClass

I'm puzzled... Anybody has experienced this yet?

NattawutWiginiyatanee1 · Answer

Yep! Thank you. this helped. But I still wonder most of my projects. this code won't break. IWorkspaceFactory factory = new FileGDBWorkspaceFactoryClass(); ‍ But for my current project it breaks. And Neil Clemmons answer solves the problem.

Vidar · Answer

Thank you Neil - you've helped me on and off for 20 years now!!

PedroAbreu · Answer

Neil,

I've been coding ArcObjects for so many years, and never had a problem with instancing Workspaces Factories with the "new" keyword.
But there's always a first for everything, and this was my first.

Thank you for your help 😉