I have create a application that uses the .Net framework 4. I have created a installer with the setup wizard, but when i run the installer it wants to install .Net 4 client . If i try to start the application it says this application needs .Net Framework, version 4.
Anyone knows how to fix this.
no magical way around this.
download the .net framework http://www.microsoft.com/download/en/details.aspx?id=17851
and add it to your project. set its installation to run before the installation of your program.
Related
I have a .netcore 3.1 WPF app and I'm using a MSIX packaging project through visual studio for distribution. Is it possible to add PSF to a .netcore 3.1 app?. Basically what I'm trying to do is, I want the MSIX installer to add a desktop shortcut automatically after the installation is done.
This is the approach I'm following: https://learn.microsoft.com/en-us/windows/msix/psf/create-shortcut-with-script-package-support-framework
I also found this guide on how to add PSF to visual studio: https://learn.microsoft.com/en-us/windows/msix/psf/package-support-framework-vs. It uses a c++ project to run a .dll, but I think that's only compatible with .net framework and it's not compatible with .netcore. Can anyone please help me?
You don't need to use the package support framework.
The PSF is recommended for cases when IT pros don't have access to the source code of the application and basically, they need an additional launcher (the psflauncher.exe) to execute additional code or redirect API calls before they get to the application.
In your case, all you need is to add a few lines of code inside your startup/main method of your application to create the shortcut.
Remember, the trick is to run this code only the first time the application is launched and if the shortcut isn't already on the desktop.
I'm working on upgrading a windows application/service to target newer .NET frameworks for a client. This is the first time I've done anything of the sort. I changed the Target Framework in the C# project's properties window to 4.5, rebuilt the project without any errors, and then tried to run setup.exe. When I run this, it says:
This setup requires the .NET Framework version 2.0.50727.
Does anyone know why this would be happening? I read about launch conditions and that it could possibly be checking that the client computer requires v2.0, but I don't see an option to view the launch conditions in Visual Studio 2013.
Thanks
I make a c# application project. this project run on my computer good, but in other computer says you must first install .NET Framework 4.0 to run this application.
How to embed .net framework 4.0 into c# project.
Thanks
You can't embed the framework into your application sine it needs to be installed on the client machine (not just xcopy'd like your app).
You'll need to create an installer which will take care of detecting and installing the required framework version before installing your application.
There is a tutorial here which shows how to create a setup project.
Once everything is set up, go to Project > [project name] Properties, click the Prerequisites... button and check .Net Framework 4. By default, the setup will download the Framework from Microsoft, so it will need an internet connection.
i am working on a dotnet C# web application which was initially created with VS 2003. My goal is to upgrade this application to Dotnet 4.0 without changing any functionaltiy. The solution has 9 projects (1 web + 8 Library projects). The Web project refers the 8 libraries in DLLs. To start off, I created a New project in VS2010 and added the all the Project files from the existing source code. Every time i add a project file to my solution, i was prompted with the Converison wizard and i completed the conversion wizard succesfully and now the solution works fine. After the conversion, i noticed that Except the "Web" project, other projects are converted to Dotnet 2.0 but not 4.0. My application runs without error if i run it locally using VS2010. My questions are
Why the Class libaray project did not upgrade to 4.0? Currently the
Web project is shows up as Dotnet 4.0 and Libaray projects shows up
as Dotnet 2.0.
Can i deploy the application to IIS 7.0 with the
Dotnet runtime of 4.0? Will the Dlls created in version 2.0 work if my application
uses Dotnet 4.0 runtime version?
Please help...
If your'e migrating now, why not move directly to Visual Studio 2012, instead of 2010?
Anyway, what you can do is open the project properties in each of your projects, and change the target framework to the .NET framework 4.0.
Then if you get any compilation error you can probably easily solve it individually. This should be relatively easy if your projects are not too big.
As for your specific questions:
The automatic conversion would only change the format of the solution/projects to be compatible with the new version Visual Studio. It shouldn't change the target framework but you can change that yourself.
Yes, assemblies targeting .NET 2.0 can be loaded and used from assemblies targeting .NET 4.0.
1) Upgrading the solution/projects file only upgrades it's format so you can open it in VS 2010. It will usually leave the targeted .NET setting at the previous value. These are two seperate things. The wonderful thing about VS 2010 is it let's you target whatever version of .NET you desire, so no longer do you need multiple version of VS installed to support differnt .NET versions. It didn't change the targetted .NET version because it leaves it up to you. You can change it under the project settings and recompile your library projects to regenerate the DLLs
2) You will need an application pool for .NET 4. .NET is backwards compatible in that a .NET 2.0 app can run on a machine with .net 4 installed. However, the application pool for 2.0 applications must be separate from 4.0 apps. So it's just a matter of putting the app under the right app pool.
Let's say, I have a .NET 2 installed. Can I programmatically install version 4 using .NET 2?
Of course you can. Include the required installation package and then Process.Start, or even better: make a setup and deployment project for your application and set a launch condition to .NET 4.0 so that when someone tries to install it it will verify the presence of .NET 4.0 and if not ask to install it:
Remark: in the screenshot set .NET 4.0 as launch condition (step 4)
You can do this (just shell out to installer MSI and msiexec.exe), but there are things like lock downs and other security issues to consider. But it's better practise to tell the user to install it and then install your program. Your installer will need to be .net 2.0 code to do this.
Sure. Just start the installer process.
Process.Start("dotnetfx.exe");