The configuration section 'system.web.extensions' cannot be read because it is missing a section declaration
By [)ia6l0 iii
Do you see this HTTP Error 500.19 – Internal Server Error when you run your 4.0 ASP.Net project?
The configuration section 'system.web.extensions' cannot be read because it is missing
a section declaration.
This is because of the improper setting of the Application Pool for your website. Check the application pool, and change it to 4.0 Classic/ Integrated mode.
Related FAQs
Visit the .Net Framework page in MSDN to know more.
http://msdn.microsoft.com/en-us/netframework/default
Named and optional parameters is a new concept introduced in 4.0.
The Named Parameters allow you to pass arguments by parameter name instead of parameter position in the signature.
Optional Parameters allow parameters to be specified as optional by providing a default value for them in a member declaration. When the member is invoked, optional arguments can be omitted.
The configuration section 'system.web.extensions' cannot be read because it is missing a section declaration (1460 Views)