I had dotnetnuke installed and everything was ok. But I had to change the structure of my website and I had to install dotnetnuke once again in a diferent folder.

Since that moment I’ve had the following error:

Server Error in ‘/dotnetnuke’ Application

Value cannot be null.

Parameter name: value

Exception details: System.ArgumentNullException: Value cannot be null.

That happens when in the instalation proccess just if I select the Custom option at the end, in the last step I get that error, but if I select the Auto option, the instalation finish without any problem.

I don’t know what is happens and if this kind of instalation (Auto) would bring me some troubles.

I read that could be to retrieve a null value from the database, but when I tried to install I create the database and when and when the instalation failure, I go to check the database and it is not empty, everything seems to be ok but that mistake