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newbie here, I am having an error in all of my projects and backups when executing my project visual studio 2012. Last week it was working fine and then the error came out. I am just using localhost.

these are solutions that i found and it still didn't work: :(

-In IIS Manager - Feature Delegation set HandlerMapping to Read/Write.

-Control Panel, Turn windows features on or off, Internet Information Services, World Wide Web Services, enable Application Development Features except CGI.

-I gave IIS_IUSRS full control to my project folder.

Any other suggestions?

error message

HTTP Error 500.19 - Internal Server Error

The requested page cannot be accessed because the related configuration data for the page is invalid.

Detailed Error Information:

Module IIS Web Core

Notification BeginRequest

Handler Not yet determined

Error Code 0x80070003

Config Error Cannot read configuration file

Config File \?\C: -- web.config

Requested URL http://localhost:49926/Home.aspx

Physical Path --

Logon Method Not yet determined

Logon User Not yet determined

Request Tracing Directory
C:\Users\john\Documents\IISExpress\TraceLogFiles\ --

Config Source: -1: 0:

my [Web.config] file

<?xml version="1.0" encoding="utf-8"?>
<!--
  For more information on how to configure your ASP.NET application, please visit
  http://go.microsoft.com/fwlink/?LinkId=169433
  -->
<configuration>
  <system.web>
    <compilation debug="true" targetFramework="4.5">
    </compilation>
    <httpRuntime targetFramework="4.5" />

    <pages>
        <controls>
           <add tagPrefix="ajaxToolkit" assembly="AjaxControlToolkit" namespace="AjaxControlToolkit" /></controls>
    </pages>
  </system.web>  

  <appSettings>
    <add key="ValidationSettings:UnobtrusiveValidationMode" value="None" />
  </appSettings>
  <connectionStrings>
    <add name="connectionString" connectionString="DELETED" />
  </connectionStrings>

</configuration>
john doe
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  • What webserver you are using? What webpage are you trying to fetch? Have you changed configuration lately? If you have I suggest you go over your changes since 500 generally indicates a server error. Have you added any changes to your backend application? If you provide more info it may be easier for people to help you. – Olga Jun 19 '15 at 09:34
  • webserver IIS 8 as localhost. Just trying to go to startpage(home.aspx) after executing in visual studio and the error come out. I really didnt change any code in backend. I guess it start when I pulled from bitbucket respository the project then when i tried to execute the 500.19 came out, i am not really 100% sure this is related. but then our project does work on a different PC. only on my pc shows the 500.19 error. Please do tell me if you need other information. – john doe Jun 19 '15 at 10:04
  • Possible duplicate of [Web Application Problems (web.config errors) HTTP 500.19 with IIS7.5 and ASP.NET v2](http://stackoverflow.com/questions/1808680/web-application-problems-web-config-errors-http-500-19-with-iis7-5-and-asp-net) – quetzalcoatl May 20 '17 at 07:39

1 Answers1

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according to me there should be problem in your application pool.. Just change and select proper version 4.5 pool to solve your server problem.. If still not work for you then inform..

Shirish
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