Visual Studio includes only x86 dlls in build
I have a .NET Framework 4.8 WPF project set to x64 and Prefer32Bit set to false. The library .net framework projects are also set to x64 but in the final output the dlls from the system and nuget are all x86 but my Project exe and and my libraries are x64.
Does anyone have an idea how to solve and get x64 only?
44 Replies
Is the executable x64? I believe managed assemblies on Windows always appear to be x86 to tools like filever, but the IL will get jitted to x64.
yes the exe is x64
Then you should be fine.
the problem is if i install the app with a MSI installer and try to start the exe i get System.BadImageFormatException
okay but dumpbin.exe can only show my x86 or x64
That sounds like a x64 DLL trying to be loaded into a 32-bit process...
ok, strange. debuging in vs works
A native one. Are you taking about native dlls?
okay, i'll do
mostly .net framework dlls from nuget and system and some sqlite3
Well figure out which dll is being loaded. And the arch of the running process.
ok ilspy shows AnyCPU (64-bit preferred)
I don't think IL spy matters much here. You need to see what arch the running process is in.
Actually I guess you can get BadImageFormatException mixing and matching x86 and x64 either way; I think I've just always experienced it where the DLL being loaded was x64.
This sounds more like an issue loading a native DLL than the managed assemblies.
if i try to execute my exe i get following in windows events:
Description: The process was terminated due to an unhandled exception.
Exception information:
Exception details:
at
at
at
Inner Exception:
at
Exception information:
System.BadImageFormatExceptionException details:
System.BadImageFormatExceptionat
Microsoft.Extensions.Hosting.HostBuilder.InitializeHostingEnvironment()at
Microsoft.Extensions.Hosting.HostBuilder.Build()at
THWin2.App..cctor()Inner Exception:
System.TypeInitializationExceptionat
THWin2.App.Main()
any idea how i can find out where the issue lies?Is your .NET Framework install x86 somehow?
you mean the installer project? i have the visual studio setup project thing and set the target platform to x64
Yeah I'll bet it's sqlite
i have those three sql dlls from Microsoft.Data.Sqlite
-a---- 11.09.2024 22:14 11776 SQLitePCLRaw.batteries_v2.dll
-a---- 11.09.2024 22:12 51200 SQLitePCLRaw.core.dll
-a---- 11.09.2024 22:12 66048 SQLitePCLRaw.provider.dynamic_cdecl.dll
and the pkg ref is in a library project with <PlatformTarget>x64</PlatformTarget>
and in ilspy they all show: // Architecture: AnyCPU (64-bit preferred)
ILSpy only runs on managed assemblies.
You likely have some native assemblies attempting to be loaded.
Run the program under a debugger like windbg and you should see the
modload spew of the DLL that is attemption to be loaded right before it fails I think.
Hmm actually it might not show that if it fails.but Microsoft.Data.SQLite in general should just work on x64?
It should.
ok windbg only shows:
ModLoad: 00007fff
be3c0000 00007fffbe623000 ntdll.dll
ModLoad: 00007fffa17a0000 00007fffa180d000 C:\WINDOWS\SYSTEM32\MSCOREE.DLL
ModLoad: 00007fffbd350000 00007fffbd417000 C:\WINDOWS\System32\KERNEL32.dll
ModLoad: 00007fffbb720000 00007fffbbae9000 C:\WINDOWS\System32\KERNELBASE.dll
(7388.9a8c): Break instruction exception - code 80000003 (first chance)
ntdll!LdrpDoDebuggerBreak+0x35:
00007fff`be4e14a9 cc int 3You need to type
g <Enter> but I don't think it will show the DLL name when it fails. But try it.ok that is longer:
ok with !pe i get:
Exception Type: System.BadImageFormatException
Message:
The file or assembly "System.ValueTuple, Version=4.0.3.0, Culture=neutral, PublicKeyToken=cc7b13ffcd2ddd51" or one of its dependencies was not found.
Reference assemblies should not be loaded for execution. They can only be loaded in a reflection-only load context.
(Exception from HRESULT: 0x80131058)
Inner Exception:
System.BadImageFormatException (Use !PrintException 000001b6c2ff9770 to see more details.)
Does
lmv m System.ValueTuple show anything interesting?here is the log. I'm not an expert for windbg but it seems it expects system.valuetuple version 4.0.3.0 but loads 4.6.26515.6
ok so i can run the exe in the bin\x64\Debug but if it gets installed by the msi setup it will fail to launch
Diff the folder where the executable is after the MSI install with the bin\x64\Debug folder and see what's different.
Something must be different.
whats interesting is the filesystem browser for the setup project shows System.valuetuple v4.0.3 and the dll in bin and actually installed is 4.6...
and the System.ValueTuple is 24kb in the debug folder and 21kb in the installed
okay i found the issue copying all the en-US like folders solves the issue so i guess this did not add tot he primary output of the wpf project and therefore was not included
but thanks to all for trying to help
oh and some dlls issues like e_sqlite3.dll and some others not beeing included
Okay, the setup install depdendency detection thing seems to be completely broken. there are dlls that exist in the msi but not the build folder of my project
I haven't built an MSI in about 20 years so no idea about that 🙂
I would also rather not to but I have to so ....
If you were using Visual Studio Setup Project, that's doomed. Complex dependency resolution is too much for that tool, and manual setup is always recommended.
it always uses 4.7.2 even though i set it to 4.8. Can you recommend a simple alternative?
maybe wix v3
WiX 5 might be better, but most working samples out there are with v3.
i know v3 is deprecated but it is still in visual studio marketplace and the clickonce installer does have problems with the Microsoft.Windows.Common-Controls thing and Windows Server 2008 doesn't like it. Maybe WIX v5 also works. I'll try it
also wix seems to be payed now at firegiant
.NET installers are with v3 still, so I am not considering it deprecated yet (just won't receive updates/support from FireGiant).
oh, okay. thanks for the information. i guess than i'll try it first because of simplicity
v5 keeps the community version free. You don't need to pay unless you want to use the advanced features/VS integration.
since you are a ms employee do you know where i can find these go.microsoft.com style .NET Framework web installer download links because it's what i see ms use but i can only find the more complicated and probably temporary download links on the dotnet.microsoft.com
I don't think there are any "Web Installers" for .NET Core/.NET. Do you just want a place to find all .NET Core/.NET installers (and their download links)?
found it. if you download there is a if it doesn't start link which is the go.microsoft.com one for .net framework
I see. So you prefer go.microsoft.com links to the alternative links.
https://dotnet.microsoft.com/en-us/download/dotnet-framework/thank-you/net48-web-installer
not sure how permanent those are
I suppose those links will remain valid for a relative long time, till a day .NET Framework goes out of sight.