Okay so I've read about, tried fair few solutions but still haven't managed to resolve this problem.
My application when testing on a 32bit machine (I've only tested on 1) instantly crashes on startup with invalid 32 application and no other error messages or information for guidance.
The application is a c# .NET 4.5.2; built in visual studio 2017. I've set it to X86 in the build configuration and the application runs on my 64bit development machine.
For test purposes I made a 32bit windows 7 virtual machine, built the solution and copied everything in the output bin folder to this virtual 32bit windows 7 machine. It runs fine, as expected. However, if I copy that exact folder to the physical 32bit machine, it crashes saying invalid 32bit application.
I even put a condition in to check the IntPtr.Size is 4, to assure my application is running in 32bit.
That made me think maybe a resource is built in 64bit, but if thats the case why would it run in the 32bit virtual environment. O.o
I'm going to try and find another physical 32 bit machine to test on.
Any guidance on how I can troubleshoot, or retrieve more information on the error would be great.
The physical machine has dot net 4.5.2 installed and 99.99% sure vcredist_x86 is also installed.
Not sure why my question has been negative points... But this has now been resolved.
The problem was that Team-viewer was corrupting the files somehow while transferring them. I tried to transfer the files zipped and noticed that the zip was strangely small and not opening. So I went into the office and did the swap by USB and BAM. Working. Annoying or what.
Related
I am writing an application in C# with Visual Studio 2010 and am close to the end with engineering of my application. For testing i use 3 different machines:
Machine A: Workstation-PC (Intel CPU, Win 7 64Bit, .NET 4.0)
Machine B: Private PC (Intel CPU, Win7 64Bit, .NET 4.0)
Machine C: Labor-PC (AMD64, Win7 64Bit, .NET 4.0)
I want a standalone .exe file for the final version. The application works like a charm on Machines A and B no matter if i run the application in the solution folder or copy it to any directory and run it there. It works always (as it should). But Machine C throws an error, directly on application startup and outputs a "...WERInternalMetadata.xml"-file which says "System.IO.FileNotFoundException":
CLR20r3
myapp.exe
1.0.0.0
53318d78
Testreporter
1.0.0.0
53318d78
5d
f
System.IO.FileNotFoundException
But when I start the application in the solution folder(e.g. ...myapp\bin\x64\Debug), where the *.dll files are contained, the application works perfectly without any problems.
Does this mean, that the program searches for its dependecies in the root directory?
I've already checked the references in code. Furthermore if there were any problems with references, the app would not run on Machine B...
I find it curious that Machines A and B run the program without issues no matter where i place the .exe but Machine C only runs my app properly when placed in specific path....
Maybe the processor plays a role there? Any ideas on how to solve this?
BTW:
How can i build a .exe-file that already contains all dependencies and libraries my application needs. A standalone-exe so to say...
Thank you very much
It looks like the EXE is able to find the necessary DLLs in GAC on machines A and B, but is failing to do so in Machine C. Hence, only the particular path is working.
Please check the GAC.
Also, to embed DLLs into EXEs, refer to this SO thread: Embedding DLLs in a compiled executable
I've found a thread with similar topic, leading me to the solution:
System.IO.FileNotFoundException. Where do I find what path is wrong?
I am using Power Packs, too. When i removed the "Microsoft.VisualBasic.PowerPacks.Vs.dll" from the solution directory and started the application, my program failed with the descripted error. Copying back, then starting the application again was successful. So I guess my the target machine (machine C) needs a Power Pack Installation.
So I guess I can solve this problem in 4 ways?:
1.) Leaving the "Microsoft.VisualBasic.PowerPacks.Vs.dll" with the .exe in same folder and then start my application.
2.) Installing the PowerPack http://go.microsoft.com/fwlink/?LinkID=145727&clcid=0x804
3.) Installing the PowerPack.dll manually to the GAC. Or getting them to the GAC with the corresponding tools as described here http://msdn.microsoft.com/en-us/library/yf1d93sz%28v=vs.110%29.aspx
4.) Embed the .dll right into the .exe
Am I right?
Thank you very much for your help!
I had this problem also, with similar entries in Windows->Application logs, including FileNotFoundException. Very disappointed that every app log clue was just a rabbit hole (lack of specific info on WHAT file).
I eventually discovered the error of my wicked ways via Procmon.exe, and scanning through every line marked "NOT FOUND" in the Result column. There was a companion DLL generated as part of the project that I'd forgotten to copy over to the target machine.
If Procmon.exe ever disappears I'll be dead. It has helped to resolve probably 90% of subtle issues encountered since I began using VisualStudio in 1998.
Gave myself a "BoneHead of The Day" award...
Alright, so I've got a Windows service that has a FileSystemWatcher that watches an output folder for some Visual FoxPro database files. And it leverages the VFPOLEDB.1 provider to read those files. I cannot go away from this provider because it's being used in production.
However, I've never had to support this application before so that's why my development box isn't setup for it. Here is my environment:
Windows 7 x64
Visual Studio 2005
.NET 2.0 Windows service
so, when I first started getting the error I figured I just didn't have the provider at all, and I was right. So, I downloaded and installed it from here.
I then proceeded to drop the files in the folder again, but I got the same error.
I figured because it's an x64 machine I might be experiencing problems with it getting registered since it was probably dropped into SysWOW64, and it was as I expected, so I ran this command:
regsvr32 "C:\Windows\SysWOW64\mscomct2.ocx"
and it said it was successfully registered (which means about nothing LOL) but I dropped the files in again - same error.
I have not yet rebooted my machine, and I can if somebody has a compelling reason that's the problem, but generally speaking if the assembly is registered properly with regsvr32 that's not necessary. I've worked with a ton of COM objects and never have to reboot to get to the object as long as I've registered it.
Does anybody know another step I need to perform to get this thing registered?
It is registered as it should. It is your application that is compiled for AnyCPU Platform.
In x64 operating system this produces 64bit code and 64bit code could not access 32bit drivers.
Change your Platform to x86 and you will be fine.
EDIT
Two years later there is something to add to this answer. Now with Visual Studio 2013 the cheese has been moved. The article linked explain in great details how the compiler setup defaults has been changed. The AnyCPU target CPU with Prefer 32 bit means that your application works as 32bit app also in x64bit operating systems leaving practically no-room to x64 application unless specifically required.
With this new configuration becomes also important to remember what is posted in comments below by Mark Berry. If your (now 32bit) app needs to work in a IIS 64bit environment you need to set the Application Pool with Enable 32 bit Applications
I have desktop app (Win7 x64 VS 2015) - and kept getting the same error no matter what. I changed platform target to x86, installed MSI as admin etc - did everything I could google - and no luck. What helped me is to install MSI for Everyone instead of Just me - one of the last wizard's screen in the setup.
I have the same problem.
I install the VFP Ole DB Provider in my system and resolved.
download link
use Advantage OLE DB Provider,works for 32 or 64,here is the connection string
I've created a very simple console app in .NET 4.0 that will run as a scheduled task. It looks for local files that are unmodified for a certain amount of time and then parses the file, inserts a record into a MySQL database, and copies the file to the network. I'm using a local SQLite database to track which files have already been processed, but unfortunately I'm running into a problem on one system at the first SQLite operation:
System.BadImageFormatException: Could not load file or assembly 'System.Data.SQLite.dll' or one of its dependencies. is not a valid Win32 application. (Exception from HRESULT: 0x800700C1) File name: 'System.Data.SQLite.dll'
at FileDatabase.CreateDatabaseAndTable()
at Program.Main(String[] args)
This exception is thrown on one system (Windows 7 x64 Home Premium with .NET 4.0 full), but is not thrown on two other systems (dev system + one other, both Windows 7 x64 Professional with .NET 4.0 full).
From browsing other questions, I see that this can happen when the program is run in 64-bit mode since the SQLite DLL is the 32-bit version. The first thing I checked is that the active platform is x86 in the Visual Studio Configuration Manager. I also used IL DASM to verify that the output exe is 32-bit (.corflags 0x00000003 // ILONLY 32BITREQUIRED). I would prefer to keep the 32-bit SQLite DLL and target platform as x86 so that I do not have to make different versions of the application for 32- and 64-bit computers.
I've also read that this exception can occur because of a corrupted DLL file, but since it works on some computers, I think this is not the case.
Other things I've tried on the problem system that didn't help:
Searching the GAC and Windows directory for errant SQLite DLLs, but found none.
Turning off AVG anti-virus.
Running the exe directly instead of the published ClickOnce application.
Uninstalling and reinstalling the ClickOnce application.
Any suggestions would be appreciated - thanks!
Installing the full setup package from system.data.sqlite.org/index.html/doc/trunk/www/downloads.wiki seems to have solved the problem - it must have been some dependency that was not present (possibly in Windows 7 Professional but not Home?). While this solution isn't perfect for a big deployment, I really just needed it on this one computer. Thanks for RoadBump for getting me on the right path.
I am developing a 32bit WinForm app (target: .NET 3.5). My client insists the app be installed into "Windows\System32\clientname" folder and autostarts on startup. Also, the app must be 32bit, so I can't use "Any CPU".
I am developing under Win7 x64 with VS2010 and all versions of .NET are installed. When I start the app I get the message "Unable to find a version of runtime to run this application".
On Win7 x86 it works without problem. It's not the app itself and I am 100% sure all the required frameworks are installed.
I know that on a x64 system this folder is not to be used for 32bit apps but as I said: client insists and won't budge.
Before I tell client definitively that it can't be done I want to explore all options. I googled of course and also searched this fine site but nothing helpful for my particular situation came up.
My app spawns another 32bit process located in the same folder. On x64 that didn't work either, of course, but I solved that by using "Wow64DisableWow64FsRedirection" and then copying it to another location to start it from there (which works fine).
I have done my homework but I just can't find a solution for starting the main app under x64 and in that particular folder.
Is there one?
In an attempt to solve this problem I created two folders on my Win7 x64 machine:
C:\Windows\System32\ClientName; and
C:\Windows\SysWOW64\ClientName
Next I created a simple x86 WinForms application targeting .NET 3.5. I found that if I copied the executable to C:\Windows\System32\ClientName I got exactly the same error message as you reported.
However, if I copied the executable to both directories, then I could start it from C:\Windows\System32\ClientName, and it worked just fine.
I did not try this, but I suspect that if you have a multi-assembly application, you only need to copy the *.exe file to C:\Windows\System32\ClientName. All of the other files (and the EXE) would then reside in the C:\Windows\SysWOW64\ClientName directory.
This is a bit of an untidy solution, I know, but then again your client's requirement is a bit unusual to start with.
I made C# application for my friend which has connection to access database (mdb file). I have developed application on my computer with win7 x86 installed. My friend had XP and it worked perfectly, but now he installed win7 x64 and application doesn't work. In fact, application starts and behave regular, but cannot connect to database... Database too can be opened with access, but my application cannot connect to it.
What can be a problem? How to make my application works on both operating systems?
regards,
Vajda
Ask your friend to download and install the following file:
Microsoft Access Database Engine 2010 Redistributable
and make sure he picks the 64-bit version there (AccessDatabaseEngine_x64.exe).
By default there is no 64-bit ODBC/OLEDB driver for Access installed, but the 2010 version should work for 2007 databases as well.
You could probably also configure your program to be built for the x86 target. That would run the program as a 32-bit program, even on 64-bit OS.
Most likely, the .Net CLR is trying to fire the app up in 64bit mode by default on his new win7 box and this might be causing some issues with the referenced assemblies.
The first thing I would try is to change the Platform target of the application (go to Project properties in Visual Studio for the application) to x86 (from Any CPU) to force the application to run in 32bit mode.
If this works, you will have narrowed down your problem.
Then, after building the project, look in the bin folder to see which assemblies are being copied to the output folder. If you see any System.Data... or any other .Net assemblies that are already contained in the GAC, you'll want to delete these and then try to fire it up. This will force the application to use GAC assemblies written for 64bit use.