Error adding the webpart

Jan 12, 2016 at 4:36 PM
Hey guys,

I managed to deploy/install the solution and activate the feature correctly.

But when i try to add the webpart to a page i get this error :

"an error occured while attempting to add the item to the page"

In the log i can only find this line :

I then tried to deploy/add another web part found on codeplex and it worked fine.

If anyone can help.