I am trying to deploy an MVC application to a server with the correct versions of .NET installed, the application pool has been set to .NET 4 but the error says .NET 2
Have a look at the screen shots below, maybe you can point me in the right direction
and
The server probably does not have the 4.5 framework installed. Both 4.0 and 4.5 MVC applications will run under the 4.0 app bool but if your application is complied against 4.5 you will need that installed on the target server.
Related
Need to find which .net version is used by web application after its deployed in IIS server with multiple .net framework versions installed in it
My Asp.net web application is compiled with target framework 4.0 and deployed in IIS 10 server. In IIS server, application pool is configured to run with CLR version 4.0.30319.
In the Deployment server, .net framework 4.0 to 4.6.2 is installed. Found this from regedit.
In this case, how to find if the web application is running under the 4.0 framework or 4.6.2 framework ?
While printing the environment.version property in aspx page of the web app, the version displayed is 4.0.30319.42000.
(https://learn.microsoft.com/en-us/dotnet/framework/migration-guide/how-to-determine-which-versions-are-installed "Microsoft Version Detection Link")
According to the above Microsoft link, 4.0.30319.42000 means .net framework version is 4.6 or above.
However, as per above link, environment.version property is not supposed to be used to identify the .net framework version post 4.5 series.
Hence confused how to find out the framework version under which web application is running ? Does it run with latest .net framework version ? Any property or official method to find this.
Intention is to migrate the web application to run with latest target framework if it's running currently below 4.5.1 version as these are not officially supported.
Sorry for the long post but couldn't explain in less words.
The server runs windows server 2008 R2 that has .NET 4.0 framework as its highest supported version. I did see people commented that .NET core supports frameworks comes later than 4.5.
I think you can run it on Windows 2008 R2 if you install SP1 and the suitable Core Framework.
Supported Windows Version:
Windows 7 SP1
Windows 8.1
Windows 10
Windows Server 2008 R2 SP1 (Full Server or Server Core)
Windows Server 2012 SP1 (Full Server or Server Core)
Windows Server 2012 R2 SP1 (Full Server or Server Core)
Windows Server 2016 (Full Server, Server Core or Nano Server)
and your System should be up to date:
For Windows 7 and Windows Server 2008 machines only:
Make sure that your Windows installation is up-to-date and includes hotfix KB2533623 installed through Windows Update.
You can find more information here:
https://learn.microsoft.com/en-us/dotnet/core/windows-prerequisites
or you can read the release information form the differnt core versions on github.
According to .NET Core documentation here, you can target Windows Server 2008 R2 SP1 on .NET Core.
You can also upgrade to .NET Framework 4.5.2 on Windows Server 2008, refer this link.
If however, you cannot upgrade to .NET Framework 4.5 and above, I think you are out of luck. Refer .NET Standard
.NET Core doesn't know about, or really interact with, .NET Framework. Conversely, .NET Framework doesn't really know about, or interact with, .NET Core. So this question is sort of like "can I put Photoshop on a machine which currently has mspaint, but not paint.net?".
.NET Core applications can either be published and run in a mode where they depend on a shared framework having been installed, which makes each individual application smaller but has a prerequisite. Or, you can publish an application as everything it needs to run on some other machine as a "self-contained" or "standalone" application, which makes the application easier to run on an arbitrary machine (of the correct OS family) but at the expense of it being larger.
If you can't change the dependencies of the target machine at all, you want to go the self-contained route. If .NET Framework 4.0 is the newest available (even though it is out of support) because of an admin being concerned about upgrading shared dependencies then maybe you can get the .NET Core runtime installed, since it won't interact with .NET Framework, and then you can stick with the smaller footprint deployment.
For an explanation of self-contained vs framework-dependent (and how to do it), see
https://www.hanselman.com/blog/SelfcontainedNETCoreApplications.aspx
I have an asp.net web application I have built using Visual Studio 2010 C# (.net 4.0). I deployed it successfully onto Windows Server 2003 with .net framework 4.0 installed on it.
I am now trying to deploy it on Windows Server 2012 R2 with .net framework 4.5 installed on it (I have to use 4.5 as another application on the machine requires it).
I am getting this error message during instillation:
Could not open key: Software\Microsoft\ASP.NET\4.0.30319.0. Verify that you have sufficient access to that key, or contact your support personnel.
I have read many posts that suggest I rebuild my application changing the 'ASPNETVersion' to 2.0 instead of 4.0. This does not work however as .net framework 2.0 is not installed on the server and I encounter build issues when building on my dev machine with .net 4.0.
IIS Application pool is pointing NET CLR to 4.0. The version of .net in the server regedit file is v4 (Client 4.5, Full 4.5), v4.0 (Client 4.0).
Is this possibly because v4.0 Client profile is installed rather than the full 4.0 .net install? I have looked online and it doesn't look like full 4.0 .net can be installed on Windows Server 2012 R2?
I wrongly presumed that ASP.NET was part of the .NET framework installation. I went back to the IIS install and installed ASP.NET which was listed under the development section. The Installer now starts correctly.
i am developing WPF application in visual studio and using .NET 3.5.
does the application fits Windows7 and Windows8 OS with no .NET framework additional installation?
do i need to add .NET 3.5 installation to setup project?
In Windows 7 .NET framework 3.5 is part of the operating system so all machines should have it.
In Windows 8 or windows 8.1 .NET framework 3.5 is NOT automatically installed (though all machines that are upgraded from win 7 -> win 8 should have it).
To run apps that require the .NET Framework 3.5 on Windows 8 or later, you must enable version 3.5 on your computer. There are two ways you can do this: by installing or running an app that requires the .NET Framework 3.5 (that is, by installing the .NET Framework 3.5 on demand), or by enabling the .NET Framework 3.5 in Control Panel. Both options require an Internet connection.
If an app requires the .NET Framework 3.5, but doesn't find that version enabled on your computer, it displays a message box, either during installation, or when you run the app for the first time. In the message box, choose Install this feature to enable the .NET Framework 3.5.
The above require an internet connection. If this is not possible you will have to include the .exe files of .NET 3.5 in your distribution
however as MSDN states:
The .NET Framework 4.5 and its point releases are backward-compatible
with apps that were built with earlier versions of the .NET Framework.
In other words, apps and components built with previous versions will
work without modification on the .NET Framework 4.5. However, by
default, apps run on the version of the common language runtime for
which they were developed, so you may have to provide a configuration
file to enable your app to run on the .NET Framework 4.5
So build your project for 3.5 and just deploy it to windows 8 machines. It should run, but its not the "best" environment for the app. The "best" would be to have .NET 3.5 installed.
I wrote a c# windows application and I want to run it on other computer without any installation.
I setup the netCFSetup v35 but when I run my application this error was apeare :
the application failed to init....
can anyone help me please?...
I think you are installing wrong framework for you application.
Since its a windows application i suggest your install .Net Framework of Desktop. The one you are installing is of Compact Framework (CF in filename netCFSetup v35) which was used for Windows Mobile 6.5 or earlier.
If you created your app in .Net 3.5 version. install this version
http://www.microsoft.com/en-us/download/details.aspx?id=21
To know in which version of .Net Framework your app is written in, go to properties section of project. There you will get your version number.