.NET 3.5 - Configuration system failed to initialize exception

Question

In my winform app, I am trying to add a userSetting, although the error is occuring with appSettings too. When the setting is added I get an exeption thrown that says: \"Con

Answer 1

I had a this problem today and found that I'd accidentally (not to mention erroneously) added a second custom configuration section to my App.config. Once I removed the errant addition, I was able to continue running my application without problems.

Removing the second ABCConfig section resolved my problem. Hope this helps!