Exception after upgrading to new version 5.11.3

Hi,
We have been using 5.9.6 before for FTP file transfer. After updating to the new version we started receiving Exception have been thrown by target of invocation error. I tried to debug but its throwing error when i start the ssis package itself.
Kindly help me to solve the issue.

Regards,
Bhuvan

How did you update to the new version?
How are you using the .NET assembly? What kind of project is that?
The exception has some inner exception for sure, what is it?

Hi,

It seems when the pop up came for updates available, the user have clicked to update it.
Actually we are using the .net assembly in SSIS script task to do FTP. Hope the new assembly must be replaced in PrivateAssembly folder of visual studio. Anyway i did it and issue got solved.

Regards,
Bhuvan