Application settings error after changing target framework of project
问题 In my application I am using user settings as explained here. Then I realized that in VS 2010 I was using .NET 4.0 while only .NET 2.0 was sufficient. When I changed the framework and build the project, in my code whenever I access setting now, I get the following error: An error occurred creating the configuration section handler for userSettings/Vegi_Manager.Properties.Settings: Could not load file or assembly 'System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' or