How to setup a configSection in .net 4.0 - c#-4.0

Question

I'm trying to setup configSection for a .net 4.0 project.
<configuration>
<configSections>
<section name="MonitorFldrSection"
type="System.Configuration.NameValueFileSectionHandler, System, Version=4.0.0.0"
allowLocation="true"
allowDefinition="Everywhere"/>
</configSections>
<MonitorFldrSection>
<add name="fldr1" value="C:\Temp" />
<add name="fldr2" value="C:\Projects" />
</MonitorFldrSection>
<connectionStrings>
</connectionStrings>
<appSettings>
</appSettings>
</configuration>
However, when I try to add a key, all I get for prompts are
comment or CDATA prompts
When I try to access in code
object obj = ConfigurationManager.GetSection("MonitorFldrSection");
I get this error: {"An error occurred creating the configuration section handler for MonitorFldrSection: Could not load file or assembly 'System, Version=4.0.0.0' or one of its dependencies. The system cannot find the file specified. (C:\Projects_4.0\NasImageIndexer\TestForm\bin\Debug\TestForm.exe.Config line 5)"}
Along with NameValueFileSectionHandler, I've also tried AppSettingsSection and DictionarySectionHandler.
What am I doing wrong?

Answer 1

Can you find this file in the location C:\Projects_4.0\NasImageIndexer\TestForm\bin\Debug\TestForm.exe.Config?
If not change the property for the config file
Build Action - Content
Copy to Output Directory - Copy Always
Edited:
This worked for me after adding public key token and change the name to key instead
<configuration>
<configSections>
<section name="MonitorFldrSection"
type="System.Configuration.NameValueFileSectionHandler, System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089"
allowLocation="true"
allowDefinition="Everywhere"/>
</configSections>
<MonitorFldrSection>
<add key="fldr1" value="C:\Temp" />
<add key="fldr2" value="C:\Projects" />
</MonitorFldrSection>
<connectionStrings>
</connectionStrings>
<appSettings>
</appSettings>
</configuration>