HTTP Error 500.19 - Internal Server Error requested page can not be accessed because the related configuration data for the page is invalid.
Error code 0x800700b7
defines a repeat of "system.web.extensions / scripting / scriptResourceHandler" section
The reason is that this problem window8.1 the default IIS application pool is .NET CLR v4.0, and the target application framework is 3.5. Solution: The .NET CLR version of the application pool of the Web site instead of v2.0, while opening the WCF service .net3.5 (Windows Communication Foundation ...) enabled and windows closed function. Of course, in the new project, the application target frame changes to 4.0, with matching IIS 4.0 also passed the test.
Attached:
the .NET Framework 1.x -> VS 2003 -> 1.0 clr
the .NET Framework 2.0 -> VS 2005 -> 2.0 clr
the .NET Framework 3.0 -> VS 2005 -> 2.0 clr
the .NET Framework 3.5 -> VS 2008 -> 2.0 clr
. NET Framework 4.0 -> VS 2010 -> clr 4.0
. NET Framework 4.5 -> VS 2012 -> 4.0 clr
the cLR is a virtual machine, .net programming library is built on a virtual machine
Reproduced in: https: //www.cnblogs.com/aswordok/p/3619326.html