I did a program in C# which runs perfectly in my machine and in another one, of 64 bits, which have the .NET Framework.
When I try to run the program in a 32 bits machine It explodes and I get:
In this link (http://geekswithblogs.net/steveclements/archive/2008/04/30/error--eventtype-clr20r3.aspx) I found some solutions, but none worked for me. I already deleted the not used DLL, in particular those involving MySQL.
Do you have any suggestions?
Thank you.
This question requires more error details like exception information, VS version, What kind of exe (Winforms, WPF, etc), but you can start by answering the following questions:
- Is your exe built for anyCPU?
Is the same .net framework version installed on both 64-bit and 32-bit PC?
Are you having any code that uses 64-bit dll?
Are you having any code that uses 64-bit constructs? (checking pointer size)
What VS/.net framework/OS version does your developer PC has? The 32-bit PC?
Related
I have a c# project which is linked with c++ project. I am running my application in 64 bit machine now. How to configure the c# project to 64 bit? There is some compatibility issue I am facing in 64 bit machine now.
Previously I was running my application in 32 bit machine. It was working perfectly. In 64 bit machine the linking fails as part of my c++ code is giving the right output. when the c# linking code is hit the execution stops without throwing any errors.
You might have to set-up your project to target x86 or x64 specifically (depends on your C++ library).
This question relates to these previous question on SO
Any CPU question 1 and Any CPU Question 2
I have a application which was originally built on Win XP using Visual Studio 2005 (don't laugh!). This app calls into our win32 C++ dll. The C# components which call the C++ dlls were built with the "Any CPU" configuration and have been happily working on Win XP without any issue.
We are now moving to Win 7 and the release version of our app (which was built on Win XP with VC 2005) works fine. However with the roll out of win 7 to our users we have now taken the opputunity to move to VS 2010 and I have built the C# components on win 7 with VC 2010 but now when running this version I get lots "unable to load abc.dll" where abc.dll is our win32 c++ components.
I understand that recompiling the C# assemblies with x86 config will solve the problem but what I don't understand is how the release version c# assemblies built with Win-XP/Visual studio 2005 (Any CPU config) are able to run on Win 7 without any issues? Surely these C# assemblies built with "Any CPU" should JIT to 64 bit code when loaded in Win 7 and cause BadImageFormatException or other errors because they call Win32 C++ dlls.
UPDATE : I have Some more information that have been requested in the comments below.
On my Windows 7 box I right click on my computer and look at the properties. The System information says "System Type : 64 bit operating system" confirming this is a Win64 OS.
Opening up the solution in VC2005 on Windows XP When viewing the configuration manager for the solution I can confirm ALL the C# projects are platform type "Any CPU".
When running the release build (which was done on VC2005/win xp) on 64bit Win 7 machine, I task manager shows the image name as "Test.exe *32", this confirms it is jit'd and loaded into 32bit process.
Under Win7, the process is 64-bit. 64-bit processes cannot have 32-bit DLLs in them, that's a pretty fundamental design limitation of Windows.
And the fact that this managed code EXE calls into a 32-bit DLL is not obvious from the get-go - P/Invoke, as well as COM interop, works via late binding. So the EXE is loaded, the loader does not check the dependencies - for one thing, the dependencies might be conditional - then the DLL loading time comes, wackiness ensues.
So yeah, if you have managed code with known 32-bit dependencies, you better specify a 32-bit CPU at compile time. Or recompile the C++ parts to 64 bits, that's also an option.
I can confirm that you should get BadImageFormatException. Is it possible that the compilation on XP was monkeyed with badly enough that it's not actually building AnyCPU but rather builds x86 labelled as AnyCPU. I can also confirm it's possible to monkey with a project file badly enough that it would do that and the project upgrade component chokes on that.
One possible explanation is that one of your projects in the solution on the 32-bit development system had a binary reference to a 32-bit assembly, which would force it to be loaded as a 32-bit process even on 64-bit systems.
I finally decided to post a question here after some time spent trying to figure out this problem. A few days ago I posted this same question on sqlite forum but that website is currently not available .
http://sqlite.phxsoftware.com/forums/t/2669.aspx
So, here is the question:
I have 64-bit computer with 64-bit OS. A co-worker has 64-bit computer with 32-bit OS. We develop a web application that brings a lot of data from server and keeps it in memory SQLite database, so everything can run faster. Right now we use 32-bit SQLite.dll on both machines. However we want to switch to 64-bit dll (and increase amount of data we can use and store). I have downloaded from http://system.data.sqlite.org/index.html/doc/trunk/www/downloads.wiki
folowing files: sqlite-dotnet-x64-1007300.exe and instaled on my machine. I have placed System.Data.Sqlite.dll and System.Data.Sqlite.Linq.dll into lib folder, while I have copied Sqlite.Interop.dll into bin\Debug folder.
When I debug application by using Any CPU everything works fine on my machine, however, my co-worker is getting errors.
I want to use 64-bit dll and build exe file using Any CPU and not worry if the system is 32 or 64. Is that possible? And if it is what I should do to accomplish that?
Thanks in advance!
P.S. We use C# - Visual Studio 2008 3.5 SP1
Today, you don't have to any more. Just make sure you bundle both interop DLLs like this:
path_to_exe\System.Data.SQLite.dll
path_to_exe\x64\SQLite.Interop.dll
path_to_exe\x86\SQLite.Interop.dll
and the System.Data.SQLite.dll will find the correct one depending on the platform.
I guess that you'll have to ship both 32 bit and 64 bit SQLite.dlls, and install one or the other depending on the target system architecture.
Just install it from nuget. It will install both builds and they will be copied in separate folders and used based on the target system. Just set your build mode to Any CPU and you are good to go!
From here.
I have a DLL created in VS 2008 and written in C#.
The dll project builds with the "Any CPU" flag.
When it is deployed and run on a Dell/Intel Windows 7 x64 machine it starts up OK, but it crashes when it tries to start using cryptography -- TDESAlgorithm.CreateDecryptor();
This is part of the mscorlib.dll.
I've built the app as targeting x64, but it also crashes in the same place. It runs fine on 32 bit machines.
How can I get this to run successfully on x64?
I ran into similar problem with windows services created in .NET. It was throwing exception and the Windows log file indicated errors in mscorlib.dll and kernel32.dll (if I remember correctly). No external 32 bits dll or special codes was used, only plain .NET.
The solution I got is to compile as x86 and then run it (as 32 bits) application on the 64 bits machine. This could be a solution as long as you don't need 64bits to run your app.
The solution I got is to compile as x86 and then run it (as 32 bits)
application on the 64 bits machine. This could be a solution as long
as you don't need 64bits to run your app. - Gaël Mo
I'd just like to point out that compiling and running for x86 on a 64 bit machine is NOT an answer... Joe would like to know why its crashing in x64 mode... obviously running in x86 mode works on x64 machines. If you couldn't get your car to run with a certain after-market part, would you consider it a valid answer if I told you to simply run the car without the part in it? Obviously not... Think carefully about your answers before posting them ok?
Does it run on the x64 machine if you build it for x86? If so, they
something isn't 64-bit ready. – sgmoore
I agree... I'd like to add that if you do not have the source code (you probably don't) then you are out of luck I'm afraid... I found THIS article that explains more fully... Apart from that, you may need to look into a different DES decryption library... OpenSSL/SSH perhaps?
I'm trying to get a firebird web application (IIS6 64 bit) to run. However I'm getting bad image format (bit difference incompatability) issues. Has anyone got any advice to get it running.
Details AnyCPU application references the .net firebird driver (through nhibernate) which uses a native 64bit dll. There is a native 32bit dll which I use for local development and it works fine. (I havn't got the 32 version working on the 64 bit server either).
This issue actually formed from how we deployed our website. The site is packaged on a 32bit computer what I didn't realize is that it also packed the 32bit native fire-bird dll's instead of the 64bit ones.