If I have a server running on .NET Framework 4.0.
Will it be possible to run ASP.NET vNext on top of that? Or will a higher framework version be required?
As stated on Asp.NET vNext's page on GitHub the minimum requirements for Windows as follows:
Windows 7 or Windows Server 2008 R2.
.NET 4.5.1 for hosting in IIS
However, ASP.NET vNext will let you deploy different versions of the .NET Framework via NuGet packages for different apps on server as stated here. But it's not .NET Framework 4.0 anyway. So, you need the higher version.
Related
We have existing web application which is developed on .Net 3.5 but we wish to now upgrade it to .Net 4.5. But I want to make sure that it runs even on windows 7 OS without .Net framework 4.5. Is that possible with any workarounds?
The simple answer is NO. You'll need to install .NET Framework 4.5.
I built a web app using dotNet 4.5. I went into IIS and created a new app pool but there was not 4.5 option, only 4.0 and 2.0. I went to install 4.5 and it says "already installed". I do a google search and see infact the registry and explorer show it to be installed.
What gives?
Although the .NET Framework Version column shows "v2.0" and "v4.0" for .NET Framework versions, these equate to ASP.NET 3.5 and ASP.NET 4.5.
Due to the internals of how application pools bind to .NET Framework versions, the actual version name written to configuration (and thus displayed in the tool) corresponds to the original .NET Framework file version.
Your question is tagged as IIS7 but the link information regarding .net versions is applicable.
Soruce: http://www.iis.net/learn/get-started/whats-new-in-iis-8/iis-80-using-aspnet-35-and-aspnet-45
Can .NET 4.0 and .NET 4.5.1 runtime be installed on one application server so that web apps targeting .NET 4.0 and web apps targeting .NET 4.5.1 will be running smoothly ?
(I heard from collegaes that 4.5.1 will break 4.0 apps after 4.5.1 is installed...)
No there is no such way as of now.(that mean what you have heard from your colleagues is quite right!) I think it is a known issue and yes 4.5.1 overwrites 4.5 so make sure you have the same version installed on your development machine and on the server. You may definitely get some more info of your problem in this MSDN blog and this MSDN
Because if you develop "Targeting .NET 4.0", then you clearly plan to
run on a machine that DOES NOT HAVE .NET 4.5!
You need to target the .Net4.0 framework to get rid of your problem
I have a working ASP.NET MVC 3 application. The project is built with VS 2010 and targets .NET 4.0. Now I re-targeted it to .NET 4.5 and successfully recompiled. Trying to deploy it to our test server (Windows 2008 R2 SP1) now fails:
Error Code: ERROR_APPPOOL_VERSION_MISMATCH
More Information: The application pool that you are trying to use
has the 'managedRuntimeVersion' property set to 'v4.0'.
This application requires 'v4.5'. Learn more at: http://go.microsoft.com/fwlink/?LinkId=221672#ERROR_APPPOOL_VERSION_MISMATCH.
The server has .NET 4.5 installed but there is no app pool 4.5 (because it's inplace upgrade and as I understand 4.0 pool should be fine). The client machine has VS 2012 and so Web Deploy 3 (was Web Deploy 2 previously). I also installed Web Deploy 3 to the server.
Tried to re-register ASP.NET with aspnet_regiis - no luck.
Why do I get the error and how can I fix it? This is so frustrating...
p.s.
Found similar question about RC but it does not help
Update:
Looks like this is a bug Microsoft hasn't fixed since CTP. IgnoreDeployManagedRuntimeVersion property did the trick. What a shame!
You can try adding this property to the project:
<IgnoreDeployManagedRuntimeVersion>True</IgnoreDeployManagedRuntimeVersion>
Windows Server 2012 includes .NET 4.5 by default and (when Web server role added) IIS has the following app pools: DefaultAppPool, .NET v4.5, .NET v4.5 Classic that use .NET Framework 4.0 (because 4.5 is inplace upgrade of 4.0). However, if we install .NET 4.5 redistributable on Windows Server 2008 that has .NET 4.0 installed the pools are not renamed: ASP.NET v4.0, ASP.NET v4.0 Classic. And this is the key why Web Deploy fails.
#kzu: not trying, this will work.
Had the same problem when installing Orchard CMS. Keep targeting v2.0.
But find the simple solution: in IIS, on the Application Pools (the list with all application pools), you can find the 2nd setting top right list: "Set Application Pool Defaults.." change there the default from 2.0 to 4.0 et, voila.
Register ASP.NET for IIS
a. Run CMD as Admin
b. CD to \windows\microsoft.net\framework\v4.x
c. Aspnet regiis -i
Does Server Core 2008 support asp.net? I see references online saying that it isn't supported, but they are all old references from CTPs.
Server Core 2008 does not support ASP.NET. However, Windows 2008 R2 Server Core supports .NET up to 3.5 out of the box, and since 2011-02-21 it can also run .NET 4.0 apps. To enable .NET 4.0 support, you need to install Service Pack 1 and the .NET 4.0 Standalone Installer for Server Core.
No.
Answer here:
http://www.microsoft.com/windowsserver2008/en/us/compare-core-installation.aspx
"ASP.NET is not available with Server Core installation option in any edition"
The short answer, as others have said: no.
The longer answer: IIS is there, classic ASP is there, and other server-side languages such as PHP will work, too. What's missing is .NET Framework, and adding it to Server Core is in the works.
Currenly the .NET Framework is not on Server Core, which means ASP.NET is currently not available. This is something the .NET team wants to add and we're working on adding it as soon as possible.
No
With the new Server Core 2008 R2 you can run asp.net in IIS, but only up to version 3.5. 4.0 is not supported since you cant install .Net 4.0 on Server Core 2008 R2 at all.