I have compiled my very simple C# WinForms app on a 64bit system, with DotNet 7.0.2, VS2022 with this configuration:
Here is the app:
It doesn't do anything, just a Form with a Button.
Now, when I deploy it to a 32bit machine (Windows 10), I got this error message:
I'm the software publisher - what can I do? I'm pretty sure it's related somehow to the 32/64 bitness of the system.
"Any CPU" shall be the most suitable for running it on both 32/64 bit machines, isn't it?
For the target, I have installed the ".NET 7.0 Desktop Runtime (v7.0.2) x86" From here (https://dotnet.microsoft.com/en-us/download/dotnet/7.0):
And it's installed on the target system:
Related
I use TAPIEx.Net in my application to connect to a TAPI-Driver.
I compile my Application as AnyCPU. TAPIEx.Net has a x86 Version (TAPIEx.net.dll) and a x64 Version (TAPIex.net.x64.dll). For developing, I reference TAPIEx.net.x64.dll (because I develop in x64 Environment). But I am searching for the solution what I have to do, when a customer loads the application in 32bit-Environment?
I have a .NET 5 WPF application built for AnyCPU platform.
In the project file i have:
WinExe
net5.0-windows
The output folder contains all dll and an exe but when i run the exe on a 32 bits windows i get this message:
This version of software.exe is not compatible with the version of windows
you're running. Check your computer's system information to see
whether you need a x86 (32-bit) or x64 (64-bit) version of the
program, and then contact the software publisher.
To ease deployment and run, I want to have only 1 build and 1 shortcut no matter the target system.
So my initial solution was to run the application using dotnet.exe and having the core dll as a parameter.
dotnet.exe software.dll
The WPF application start and run fine but the console with the dotnet command line is kept open during the application lifetime.
Is there a solution to get rid of the console when I start the WPF application using dotnet.exe ?
No solution without exe file at this time, so as a workaround I found a way to produce both 32bit and 64bit exe.
In the Visual Studio build configuration manager, I added x86 and x64 platforms.
Which updated the csproj with
<Platforms>AnyCPU;x86;x64</Platforms>
Then I added in csproj
<AssemblyName>MySoftware-$(Platform)</AssemblyName>
When I build the solution, it automatically append the targeted platform to the exe and dll for the platform.
MySoftware-x86.exe
MySoftware-x86.dll
MySoftware-x64.exe
MySoftware-x64.dll
Finally, I call "dotnet.exe build" twice for both x86 and x64 using a script.
To put all this together, a 32-bit machine can run anything with a PE
set to PE32, but nothing with a PE of PE32+. A 64-bit machine can run
your file in 64-bit mode as long as 32BIT is 0, but if 32BIT is 1 then
it must use WOW64.
https://illuminatedcomputing.com/posts/2010/02/sorting-out-the-confusion-32-vs-64-bit-clr-vs-native-cs-vs-cpp/
Why would you want to compile a .NET assembly specific to 32-bit or
X64, or IA? Usually because you're P/Invok'ing into a x64 specific
native dll.
The interesting things that corflags tell us are these:
CLR Header: The compiler version...2.0 is .NET 1.1, 2.5 is .NET 2.0
and 3.0 is .NET 3.5. Don't ask. ;)
PE (Portable Executable): PE32 is 32bit and PE32+ is 64-bit.
32BIT: Are we asking to force 32-bit
execution or not?
www.hanselman.com/blog/32bitness-and-64bitness-and-migrating-dasblog-on-iis7-and-aspnet-under-vista64
I recently started testing on a C# (4.0) app that uses ODP.NET (Oracle.DataAccess 4.112.3)
I set this project to target any platform and publish the app.
When I run the program on the client machine I receive:
Could not load file or assembly 'Oracle.DataAccess, Version=4.112.3.0,Culture=neutral,
PublicKeyToken=89b483f429c47342' or one of its dependencies. An attempt was made to load
a program with an incorrect format.
Like I said I've targeted 'Any CPU' and I've also embedded the Oracle.DataAccess assembly with the app.
I get this error on machines that have the Oracle client installed as well as machines that do not.
Any help is appreciated.
Like I said I've targeted 'Any CPU'
This is likely the problem.
The Oracle.DataAccess has separate versions for 32bit and 64bit systems. If you are developing on a 32bit machine, and then deploying on a 64bit OS, you will receive this message.
You could easily work around this by building your application to target x86, and deploying the 32bit version of the data access components.
As Reed Copsey said, there are two different DLLs. When you target ANYCpu, your app will run in 64 bit on a 64 bit machine, and 32 bit on a 32 bit machine. Therefore, if you want your app to work on 32 or 64 bit and run in AnyCPU mode, you should change the reference of Oracle.DataAccess to Specific Version=false and copy local = false. When you deploy to a client, they should have the oracle dll in the their GAC and it should pick up the correct version automagically.
You should perhaps check if the Oracle.DataAccess assembly has any dependencies in your machine and that it is missing in the client machine.
From debug Any cpu at top change the optin to debug X64, though internally Any CPu points to X64 only but that does not work, try to change it to x64 and it should work like a charm
Our Teamcity agent is running on a 32bits OS for now and this was not an issue up until now (we now have an x64 applications to build in there).
I heard its possible to compile x64 applications on a 32bit OS but I've never did it. What would be the step required to have Teamcity build a specific project in x64 - Ideally using MSBuild?
When I set my project's MSBuild property "Run Platform" to x64 my agent give me the following warning: "Unmet requirements: DotNetFramework4.0_x64 exists"
As a side note: we will eventually move the agent to a 64bits OS but I would like a short term solution.
I think the Run Platform for MSBuild in TeamCity is for what version of MSBuild to use, it's looking for MSBuild.exe in the C:\Windows\Microsoft.NET\Framework64\v4.0.30319 folder, when you're on a 32-bit version of Windows, and that framework isn't installed. However, the 32-bit version of MSBuild can invoke the C# Compiler that can still produce x64 assemblies, even on your 32-bit machine.
What you want to do is do a Run Platform for x86, but pass /property:Platform=x64 as one of your commands. If you don't have a x64 Configuration, you may considering trying to pass it /property:Platform="Any CPU". However, Any CPU would only be guaranteed to work if all the assemblies you reference in your project are set the Any CPU as well. Alternative, you can create a custom configuration where all your assemblies are specified x64, and pass that via command line to MSBuild.
Keep in mind if any of your projects are C++, you will need to make sure you have the x64 compilers installed, as I don't think they're installed by default.
the full error is
Error CS8088: Your .NET Runtime does not support `PE32Plus'.
Please use the latest Mono runtime instead. (CS8088) (test)
this is on a x86_64 linux system with mono and monodevelop installed as x86_64. This happens with any application I try to compile as x64 including an empty test program.
I have mono 2.6.7 install and monodevelop 2.4.3, Can anybody out there provide insights.
from what I can tell PE32Plus is a filetype for 64bit applications but mono's website says they support x64 environments
Managed applications are run via 'mono myApp.exe' on Linux. The version of 'mono' specified determines whether the app is 64-bit or 32-bit. If you use a 32-bit mono runtime, the managed application will be run in 32-bit mode. If you use a 64-bit mono runtime, the managed application will be run in 64-bit mode. Windows supports launching a managed executable directly via OS support, and uses the platform information to determine whether to launch the managed code as 32 or 64 bit.
So, platform information only matters on Windows with .Net. Mono ignores this information. I believe the most recent mono's support compiling with the x64 platform switch. If not, it's fine to compile it as x86 and run it with a 64-bit mono runtime.
I recently asked the same on mono's IRC channel and it seems that it's not supported.
Specifically, I was told not to use "-platform:x64" because not only the runtime ignores it but the SRE (System.Reflection.Emit) implementation doesn't know how to emit PE32+ binaries.