How to solve error message Failed to map the path

Question

I ve searched and searched on Google  and I can t find anything that even seems applicable to my situation  let alone solves the problem  It doesn t matter which address in my website I try to navigate to  even addresses that don t exist give this error instead of a 404   I get the exact same message  the path is always       Any ideas   Server Error in     Application   Failed to map the path       Description  An unhandled exception occurred during the execution of the current web request  Please review the stack trace for more information about the error and where it originated in the code    Exception Details  System InvalidOperationException  Failed to map the path       Source Error    An unhandled exception was generated during the execution of the current web request  Information regarding the origin and location of the exception can be identified using the exception stack trace below   Stack Trace      InvalidOperationException  Failed to map the path          System Web HttpRuntime HostingInit HostingEnvironmentFlags hostingFlags  PolicyLevel policyLevel  Exception appDomainCreationException   336   HttpException  0x80004005   Failed to map the path          System Web HttpRuntime FirstRequestInit HttpContext context   11556592    System Web HttpRuntime EnsureFirstRequestInit HttpContext context   141    System Web HttpRuntime ProcessRequestNotificationPrivate IIS7WorkerRequest wr  HttpContext context   4813333  Version Information  Microsoft  NET Framework Version 4 0 30319  ASP NET Version 4 0 30319 225   UPDATE  I went back to the site a few minutes after posting this--made no changes to code or configuration--and the error went away  I m really baffled  but it is no longer a problem

User · Answer

I experienced this after updating to Windows 10 Fall Creators edition version 1709. None of the solutions above worked for me. I was able to fix the error this way:

Go to “Control Panel” > “Administrative Tools” > “IIS Manager”.
Choose “Change .NET Framework Version” from the “Actions” in the right margin.
I chose the latest version shown and clicked “OK”.

If IIS Manager is not available under Administrative Tools, you can enable it this way:

Press the Windows key and type "Turn Windows Features On or Off" then select the search result.
In dialog that appears, check the box by “Internet Information Services” and click OK.

User · Answer

I Think this is because of  IIS is unable to find the root folder  i e wwwroot  Restarting the IIS wont be helpful in some scenarios  if the root path has changed  you should bring it back to  SystemDrive  inetpub wwwroot  by right clicking sites node in IIS and changing physical path to the above one   and make sure that your application pool is asp net v4 0 and  running in integrated mode

User · Answer

I had this issue with a specific application and not the entire IIS site  In my case  access to the application directory was not the problem  Instead  I needed to give the application pool a recycle    I think this was related to how the application was deployed and the IIS settings were set  done via scripts and a deployment agent

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I had the same issue  MVC 4  under IIS 7   It turned out that the App Pool identity didn t have the correct authorization to the site s path

User · Answer

This line  top of the stack trace  is telling you there is something wrong which the hosting configuration     System Web HttpRuntime HostingInit HostingEnvironmentFlags hostingFlags  PolicyLevel policyLevel  Exception appDomainCreationException   336   How is your server set up   Have you checked the config files   I d search through them specifically for any settings or attributes which have the single value

User · Answer

Today when I renamed the default website  under which my MVC application was hosted  I started getting that error too  But I restarted IIS and the issue was resolved

User · Answer

Changing pool from ASP NET v4 0 to Framework4 worked for me

User · Answer

I found that I had misnamed some virtual directories in IIS Manager  After fixing them  I was good

User · Answer

I also have same issue  In my case working on InstalledSheild   InstalledAware  to make setup of web service  After setup run the above error comes  while resolve issue when check  found that IIs default website path remove after setup run   So I just add path as below step    Go to Command prompt -  type InetMgr Its open IIS  go to  Default Web Site  -  Advanced Settings  at right side menu   Go to Physical Path and paste this things -   SystemDrive  inetpub wwwroot  as below

User · Answer

You don t have to reset IIS  you can just recycle the app pool

User · Answer

i have tried following solution and it had work for me C  Program Files Microsoft Visual Studio 10 0 Common7 IDE devenv exe right click on Devenv exe in Compablity tab --  Privilage Level --  click on Run this Program as an Adminstrator If as for the Admin Password Provide it  if it is already selected deselect it and again select it -- Apply-- OK  restart the VS application and Publish your website again

User · Answer

Executing the command iisreset  cmd with elevated rights  fixed this issue for me

User · Answer

These samples run in server  So either the Windows user must have READ WRITE permissions or must run the sample in Administrator mode   Try running the sample in Administrator mode

User · Answer

I ve gone to the Internet Information Services Manager   Click the sites   Right click on your website   Click Manage Website   Advance Settings   Change the application pool to DefaultAppPool  And it works fine to me

User · Answer

restarting IIS solved the same issue in my case  Seems like something fails in IIS  Didn t worth my panic  either   IIS 7 5  btw

User · Answer

I ran into the same issue when trying to run the ASP Net precompiler  it turned out that I was not opening the command prompt as administrator  Once I did  I was able to run the asp net compiler successfully

User · Answer

Just start cmd and run the command iisreset and error will be gone

User · Answer

I was receiving this error because I happened to be opening a website project over a mapped network drive z  folder instead of connecting via a UNC path   server path folder   Once I opened the project from the UNC path it built just fine

User · Answer

The following works for me  1  Right click on  Default web site  2  Choose Advance settings 3  Setup Physical Path to C  inetpub wwwroot 4  Click OK  5  Browse the Default web site  --  It works

User · Answer

It could be due to data in your web config file  E g  a backslash in a domain username    userName  domain user

User · Answer

My solution was to make sure that all IIS features are installed  So went to add remove programs in the control panel and clicked on add remove windows features and selected all options except IIS 6 console compatibility

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