I am trying to make a simple Windows Forms app that communicates with Arduino.
As this is my first WinForm application, I am currently stuck on the publish process.
I manage to publish the app with a installer, but, when I open the installer, it asks for the .NET Framework 4.6.2 to be installed.
I tried targeting the .NET 4 version on my project, but the installer keeps requiring the 4.6.2.
Do you know how to solve this? OR is this maybe due to the installer itself needing the 4.6.2 framework?
Thanks,
did you change the .net version required on the installer project ? if not, you should check your launch conditions (right click your project → vies → launch conditions). There you can right click ".NET Framework" and chose properties. In the properties window you can adjust your .net version required.
I'm assuming you use the installer projects from the "Visual Studio Installer Projects" extension.
Related
I am making a project in Visual studio in C# and when I tried running the built and published project on my friend's computer it gives an error that a certain version of .Net is not installed. I know that you can make projects in C++ and that doesn't require .Net, but I don't want to learn a new language and I mostly get youtube help from people that code in C#. anyone that knows Visual studio, can you tell me if there is a format I can make the project in? for example, Console application, NUnit test project, etc. thx
You can publish an application with self-contained enabled. This will build an application that includes all the dotnet framework files needed to run the application.
This does make the application bigger, even the most basic dotnet6 console app on my machines is ~10mb and when it's framework dependent it's 160kb
the settings used in the UI:
You can do this in console with:
dotnet publish -r win-x86 -c Release --self-contained true -p:PublishTrimmed=true -p:PublishSingleFile=true
Some good docs on trimming and publishing:
https://learn.microsoft.com/en-us/dotnet/core/deploying/trimming/trim-self-contained
https://learn.microsoft.com/en-us/dotnet/core/deploying/single-file/overview
Note on trimmed=true option:
https://learn.microsoft.com/en-us/dotnet/core/deploying/trimming/incompatibilities
You need to download the framework that your project is using to be developed in and install it on your friends PC. This is normal and with more advanced software engineering you would build an installer that could install it as part of your applications installation.
For now, check what version of the .NET framework your application is build in. You can do this by going to your Solution Explorer window, right clicking on your solution and selecting properties. It will open a new tab menu on the left of your screen and you want to select the Application. In there you will see a drop down menu labelled "Target framework" which shows what framework your project is using, for example ".NET 5.0"
Once you know which framework your project uses, you can go to https://dotnet.microsoft.com/ to download the installer for that framework on your friends machine. Run the installer and once it has the relevant framework, it should run your application fine.
Additionally to what Istalri Skolir has said, you could also try to optimize for a certain Windows version, by using a preinstalled .NET version.
Here's a list of .NET Frameworks included in specific OS versions.
For example:
Windows 10 May 2019 Update (all editions) includes the .NET Framework
4.8 as an OS component, and it is installed by default
You will need to define the .NET Framework version in the project settings.
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
When using a ClickOnce installer, will it include the necessary .NET framework?
For instance, I want to distribute a WPF application that uses the System.ComponentModel namespace, which wasn't included until .NET 4.5. If I ran the ClickOnce on an older version of Windows that only had up through, say, .NET 3.0, would it still work?
The click once application will depend on the .NET 4.5 framework. You can include this as a redistributable through project settings -> publish -> prerequisites. In fact I think recent VS versions will already prepare a setup package to run through installing this during the pre-reqs section of your installer. You can even alter the location of where the redistributable package comes from.
In summary. It will "work" in that when someone runs your installer it will tell them they don't have the correct pre-reqs, and offer to install .NET 4.5
It will, if you install with the setup.exe installer. I haven't tried it for some time but it always worked like this.
If you link directly to *.application manifest, the .net framework and other dependencies will not be installed automatically.
I know how to include the .NET Framework 4 as a dependency to my installer Setup Project in Visual Studio 2010. However, is there a configuration to set to make the installer check if the dependency is available, and then install .NET 4 on the machine when it isn't?
At the moment all it does is include the .NET Framework 4 installer in a separate folder in the "Release" output folder.
UPDATE:
I do have the .NET Framework 4 set as a launch condition.
I do have the .NET Framework 4 set as a precondition.
One thing I notice, in the launch conditions window, I cannot delete the current .NET Framework launch condition, and the option "Add .NET Framework Launch Condition" is greyed out.
You need to add an launch condition in addition to making a pre-requisite (as described in your link):
http://msdn.microsoft.com/en-us/library/xxyh2e6a.aspx
You need a prerequisite instead of a launch condition:
in your setup project Launch Conditions Editor remove the .NET Framework launch condition
right-click your setup project in Solution Explorer and select Properties
click Prerequisites button in the shown property page
make sure that the appropriate .NET Framework prerequisite is checked
Optionally, you can create your own custom prerequisite instead of using the predefined one.
Launch conditions stop the install when not met. Prerequisites are packages which are automatically detected and installed before your main installation.
I've got a simple ClickOnce application - it only targets .NET 2.0, but in the prerequisites I've got to select .NET 3.5 as a minimum prerequisite, whereas I really want to have .NET 2.0 as a prerequisite.
I'm in Visual Studio 2010... What do I do?
Right click on the project, select Properties and then Application. Make sure the target framework is .NET Framework 2.0
(Repeat the operation if your solution contains more than one project.)
Then select Publish. Click on the prerequisites button and make sure that if the setup program creation is selected, on .NET Framework 2.0 is checked.
That should do it.
You can copy the .NET 2.0 bootstrapper package from Visual Studio 2008's folders to Visual Studio 2010's folders and it will magically show up and work.