![An error occurred...500.19 - Internal Server Error ... 0x800700b7 ... There is a duplicate 'system.web.extensions/scripting/scriptResourceHandler' section defined" when launching Controller (10.2.1 or earlier) caused by using .NET 4.0 An error occurred...500.19 - Internal Server Error ... 0x800700b7 ... There is a duplicate 'system.web.extensions/scripting/scriptResourceHandler' section defined" when launching Controller (10.2.1 or earlier) caused by using .NET 4.0](https://www.ibm.com/support/pages/system/files/support/swg/cogtech.nsf/0/cb04a590891702a085257c5f003362a8/Symptom/3.486C.gif)
An error occurred...500.19 - Internal Server Error ... 0x800700b7 ... There is a duplicate 'system.web.extensions/scripting/scriptResourceHandler' section defined" when launching Controller (10.2.1 or earlier) caused by using .NET 4.0
HTTP Error 500.19 – Internal Server Error..." when browsing Revit Server Administrator panel (or SVC files) | Revit | Autodesk Knowledge Network
![HTTP Error 500.19 - Internal Server Error ... Cannot read configuration file due to insufficient permissions" when launch Cognos Connection HTTP Error 500.19 - Internal Server Error ... Cannot read configuration file due to insufficient permissions" when launch Cognos Connection](https://www.ibm.com/support/pages/system/files/support/swg/cogtech.nsf/0/0fcf6ba1f02fbbd5852580e50055b00b/Symptom/0.84.gif)
HTTP Error 500.19 - Internal Server Error ... Cannot read configuration file due to insufficient permissions" when launch Cognos Connection
Cannot read configuration file due to insufficient permissions' occurs when getting HTTP Error 500.19 - Worry-Free Business Security
![Http error 500.19 internal server error IIS | error on a web app in Internet Information Services - YouTube Http error 500.19 internal server error IIS | error on a web app in Internet Information Services - YouTube](https://i.ytimg.com/vi/O1z3IJTiC6g/maxresdefault.jpg)
Http error 500.19 internal server error IIS | error on a web app in Internet Information Services - YouTube
![iis 7.5 - HTTP Error 500.19 - Internal Server Error The requested page cannot be accessed because the related configuration data for the page is invalid - Stack Overflow iis 7.5 - HTTP Error 500.19 - Internal Server Error The requested page cannot be accessed because the related configuration data for the page is invalid - Stack Overflow](https://i.stack.imgur.com/afSXo.png)
iis 7.5 - HTTP Error 500.19 - Internal Server Error The requested page cannot be accessed because the related configuration data for the page is invalid - Stack Overflow
![HTTP Error 500.19 - The requested page cannot be accessed because the related configuration data for the page is invalid | Appeon HTTP Error 500.19 - The requested page cannot be accessed because the related configuration data for the page is invalid | Appeon](https://www.appeon.com/sites/default/files/pictures/knowledgebase/20140909/1.png)