Error: Error loading type library/DLL.

Add-in Express™ Support Service
That's what is more important than anything else

Error: Error loading type library/DLL.
 
Chris Ducharme




Posts: 56
Joined: 2013-05-09
Hi

We are setting up a new development machine, and are trying to move our Outlook Add-in over to that machine. When we try to build the project, we are getting the following error:

The assembly "C:\MyOutlookAddin\MyOutlookAddIn_20200922\MyOutlookAddIn\bin\Debug\MyOutlookAddIn.dll" could not be converted to a type library. Type library exporter encountered an error while processing 'MyOutlookAddIn.ExceptionDialog, MyOutlookAddIn'.
Error: Error loading type library/DLL.

Any ideas of how to fix this?

Visual Studio 2017.


Thanks

Chris.
Posted 30 Sep, 2020 10:14:30 Top
Chris Ducharme




Posts: 56
Joined: 2013-05-09
We found the problem.

One of the controls on one of our forms was not registered correctly.

Thanks

Chris.
Posted 30 Sep, 2020 14:37:53 Top
Andrei Smolin


Add-in Express team


Posts: 18829
Joined: 2006-05-11
Thank you, Chris!


Andrei Smolin
Add-in Express Team Leader
Posted 01 Oct, 2020 02:28:42 Top