[Solved-4 Solutions] “The page you are requesting cannot be served because of the extension configuration.” error message
Error Description:
I'm getting this error message when trying to run my application. I don't know how to fix it:
- HTTP Error 404.3 - Not Found The page you are requesting cannot be served because of the extension configuration. If the page is a script, add a handler. If the file should be downloaded, add a MIME map.
Here's a screenshot of the error page:
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Solution 1:
- Use aspnet_regiis.exe to register version of .NET framework you are using.
- This is a common issue and happens when IIS is installed after VS or .NET framework.
- Note - for Windows 8/10 users, see the other answer by JohnOpincar below.And also, the comment/tip from Kevin Brydon.
Solution 2:
- In Windows 8/10, you have to use Programs and Features, Turn Windows features on or off, IIS, World Wide Web Services, Application Development Features, and check the appropriate items, such as enabling ASP.NET.
Solution 3:
On Windows 10:
- Go to Control Panel - Programs and Features - Turn Windows features on or off.
- Select .NET Framework 4.6 Advanced Services - WCF Services
- Check HTTP Activation.
- OK done.
Solution 4:
On Windows 2012 server by Installing ALL WCF Features, we can fix this error.
- Server Manager > Manage[link top left] > Add Roles and Features
- In Features > .Net Framework 4.5 Features > WCF Services
- Check (enable) the features. I checked all.
- Install