ASP.NET 4.5 is not registering on the web server

Question

I'm getting the errors below when trying to open existing and when trying to create a new MVC 4 web app. with VS 2012 on a Win 7 x64. Searching on SO I found this which seems to be what I'm looking for. But after running the command "successfully" it still doesn't work. Any ideas?

Existing Project enter image description here

New Project enter image description here

IIS enter image description here

It looks like it. Is there another way to check besides looking at IIS? — joetinger, Dec 10 '14 at 13:52
Looking in my registry. `HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\NET Framework Setup\NDP\v4\Full\1033` 4.0 is the TargetVersion and 4.5.53349 is the Version — joetinger, Dec 10 '14 at 13:59
Have you tried removing IIS and then adding it back? That solved my issue when I faced the problem you're facing — Izzy, Dec 10 '14 at 14:28
After I added it back I ran the following command `"%windir%\Microsoft.NET\Framework\v4.0.30319\aspnet_regiis.exe -i` — Izzy, Dec 10 '14 at 16:46

score 0 · Answer 1 · answered Dec 10 '14 at 13:45

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Here is how to register framework to IIS:

C:\windows\Microsoft.NET\Framework\v4.0.30319->aspnet_regiis –ir

answered Dec 10 '14 at 13:45

clement

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score 0 · Answer 2 · answered Dec 10 '14 at 13:57

You need to activate ASP.NET 4.5 on IIS. This is done through "Turn Windows Features on or off". Type this in your Start Menu and navigate through the tree as following: Internet Information Services -> World Wide Web Services -> Application Development Features -> ASP.NET.

Check the box named ASP.NET and it should work. Depending on your operating system it may also show ASP.NET 4.5.

score 0 · Answer 3 · answered Dec 10 '14 at 20:09

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Thanks for all of the help. I ended up re installing .NET 4.5 using this video. After it was uninstalled I had to run a repair on VS 12, it wasn't finding .NET 4.5 But it now works again.

answered Dec 10 '14 at 20:09

joetinger

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score 0 · Answer 4 · answered Dec 12 '16 at 13:40

For Visual Studio 2012, I downloaded the Microsoft update found here: https://support.microsoft.com/en-gb/kb/3002339

Information found on:

https://blogs.msdn.microsoft.com/webdev/2014/11/11/dialog-box-may-be-displayed-to-users-when-opening-projects-in-microsoft-visual-studio-after-installation-of-microsoft-net-framework-4-6/

ASP.NET 4.5 is not registering on the web server

4 Answers4