This browser is no longer supported.
Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support.
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(240, 86%, 33%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ESP%3C/text%3E%3C/svg%3E)
Hi Team,
The microsoft visual studio 2019 web and webapi projects when opened in visual studio 2022, getting the below error and cannot open it.Please guide me
The IIS Express applicationHost.config file contains invalid entries and must be corrected before you can open project
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(80, 82%, 17%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EBZ%3C/text%3E%3C/svg%3E)
Hi @Shunmuga Priya Kandasamy (INFOSYS LIMITED) ,
I found that you have find the solution but delete the comment. Do you solve the problem?
After following the below thread solution, it was working fine.
The two solutions which i have followed from the link, are
Solution 1
Go: C:\Program Files (x86)\IIS Express\config\templates\PersonalWebServer
Copy 3 files: applicationhost.config, aspnet.config và redirection.config
Go to: Documents\IISExpress\config
Paste and replace all 3 files
Reload
Solution 2
The OneDrive application is removing by default the content of "C:\Users\username\Documents\IISExpress\config" folder, so Visual Studio cannot copy the .config files into .vs folder on the solution directory.
I resolved it by ensuring the files are on this path, and disabled the backup option on Documents directory in the OneDrive settings.
In the folder your solution is in delete the hidden folder .vs and try again. This will cause the file to be regenerated when you open the solution again.