500 19 - Internal Server Error - The requested page cannot be accessed because the related configuration data for the page is invalid

Question

Before everyone reads this  I just want to say that i know that there are related threads out there  but I have either tried them or do not understand  With that being said here goes nothing     I am trying to get a MVC Web App running in my IIS  Unfortunately  I am absolutely stuck on this error   HTTP Error 500 19 - Internal Server Error  The Request page cannot be accessed becasue the related configuration data for  the page is invalid   Module  IIS Web Core Notification  BeginRequest Handler  Not yet determined Error Code  0x80070005 Config Error  Cannot read configuration file due to insufficient permissions Config File   foo web config Request URL  http   localhost WEBAPP Logon Method  Not yet determined Logon User  Not yet determined  Config Source -1  0    I am not quite sure what else to do  I have also tried giving read permission to the web config file and that did not seem to work   If anyone has any information or would be able to help me work through this it would be much appreciated  Thanks

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In my case  Server had lower version framework than your application  installed latest version framework and it fixed this issue

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I was trying to run a  net core 3 1 site from IIS 10 on windows 10 pro box  and got this error  Did the following to resolve it  First turn on the following iis feature on   Then follow the link below  https   docs microsoft com en-us aspnet core host-and-deploy iis  view aspnetcore-3 1 install-the-net-core-hosting-bundle Install the  net core hosting bundle  The direct link is https   dotnet microsoft com download dotnet-core thank-you runtime-aspnetcore-3 1 2-windows-hosting-bundle-installer I have installed the  net core sdk and run time as well  But this did not resolve the issue  What made the difference is the  net core hosting bundle

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Please follow these step    Go to Control Panel Go to Programs and Features Turn Window Feature on or off Go to Internet Information Service node Follow World wide web Services Then Please Check Application Development Feature Then  Please check all Node Specially  Asp or Application Framework  Like Asp net 3 5  or ASP NET 4 5  whatever you have

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I had this error with Visual Studion 2019  my project was NopCommerce 4 30 which is an ASP Net Core 3 1 project  I added page  quot gouden-munten-buitenland quot  to be the starting page and I only got the error when going to that page  Turned out that Visual Studio generated an invalid applicationHost config    lt applicationPools gt                lt add name  quot gouden-munten-buitenland AppPool quot  autoStart  quot true quot    gt       lt add name  quot gouden-munten-buitenland AppPool 2 quot  autoStart  quot true quot    gt   lt  -- WRONG -- gt       lt add name  quot Nop Web AppPool quot  managedRuntimeVersion  quot  quot    gt       lt applicationPoolDefaults managedRuntimeVersion  quot v4 0 quot  gt       lt processModel loadUserProfile  quot true quot  setProfileEnvironment  quot false quot    gt       lt  applicationPoolDefaults gt   lt  applicationPools gt   and  lt sites gt                lt site name  quot Nop Web quot  id  quot 2 quot  gt               lt application path  quot  gouden-munten-buitenland gouden-munten-buitenland quot  applicationPool  quot gouden-munten-buitenland AppPool quot  gt           lt virtualDirectory path  quot   quot  physicalPath  quot C  Usr Stephan Wrk Kevelam kNop 430 Presentation Nop Web quot    gt       lt  application gt       lt application path  quot  gouden-munten-buitenland quot  applicationPool  quot gouden-munten-buitenland AppPool 2 quot  gt           lt virtualDirectory path  quot   quot  physicalPath  quot C  Usr Stephan Wrk Kevelam kNop 430 Presentation Nop Web quot    gt       lt  application gt   lt  -- WRONG -- gt                lt  site gt           lt  sites gt   I removed the nodes identified as  WRONG  and then it worked

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My issue is that I accidentally installed another site as the default site instead of the IIS default  by opening another project   I had to remove the default site and repoint it to the default location C  inetpub wwwroot using my domain login as the user to bypass with then just reopened my project that I was trying to run  the one showing this error  and it was all honky dorry

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In my case I had  Net core SDK 3 1 403 was installed  So I installed the corresponding  Net Core Windows Server Hosting which is  NET core 3 1 9 - Windows Server Hosting

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On this MSDN blog  Troubleshooting HTTP 500 19 Errors in IIS 7 in scenario 8 for error code 0x80070005  E ACCESSDENIED - General access denied error  it says   Grant Read permission to the IIS IUSRS group          the worker process identity  and or the IIS IUSRS group  needs at least Read access to the directory so that it can check for a web config file in that directory

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I had a sub folder named web config renaming this folder resolved the issue

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I was accessing the project from inside a Virtual Machine - sharing the project folder from the host OS  Windows 10   After trying many of the solutions  and even ensuring the permissions for the IIS IUSRS are given  still I could solve this   Eventually  I copied this folder from the host  onto a path on the guest OS  and now I can properly run that same ASP NET project without ado  But  I did also go ahead and give the IIS IUSRS group full control over this new dir as well    maybe that s not really necessary in this case  I m lazy to test that ATM

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For completeness  the answer to Asp Net Core tag in web config causes failure may also be the solution to the problem here   If the  NET Core Windows Server Hosting bundle is not installed then IIS cannot recognize the aspNetCore section in web config   https   docs microsoft com en-us aspnet core host-and-deploy iis  view aspnetcore-3 1 install-the-net-core-hosting-bundle claims to be a direct download to the current version

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If Folder getting from other  and host file is already generated on ProjectName  vs config folder  then it conflicts with a new one and gets this error  So delete host file from ProjectName  vs config and restart project once again  It was worked for me

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I fixed this by restarting VS   I had opened a config file in another instance of VS and apparently sth went nuts

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In my case I needed to install the IIS URL rewrite module 2 0 because it is being used in the web config and this was the first time running site on new machine

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Delete  vs Config folder   gt  work for me

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In the Edit Application Pool window  set the  NET CLR version to No Managed Code

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Goto Windows Features on or Off    Enable All Features under Application Development Features and Refresh the IIS  Its Working

[c#] 500.19 - Internal Server Error - The requested page cannot be accessed because the related configuration data for the page is invalid

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