Missing <configSections> in config file after deployment
问题 Update: I had a question below but actually my problem would be solved by asking a slightly different question. Why on some machines does my application throw the error: Configuration system failed to initialize - System.Configuration - at System.Configuration.ConfigurationManager.PrepareConfigSystem() where as on other machines it does not. The error as described also here .NET 3.5 - Configuration system failed to initialize exception is caused by a missing configSections element at the top