I have created a WinForms UserControl.
When I leave the platform at AnyCPU, I can debug it without any problem:
When I press Play, the preview comes up.
Then I try to change the project to x86.
Therefore I click "AnyCPU", then "Configuration Manager".
At "Active project platform", I select "New...".
Now I select "x86" and click "Ok".
Then, when I click "Play", I get the error "System.BadImageFormatException".
Is that a common problem, or something very, very wrong on my system?
It happens each time I try this with a new project.
I can reproduce the error you find in VS 2017 15.9.8 just by:
Create new (VB or C#) Windows Forms Control Library
Check it runs via default AnyCpu solution platform
Create new x86 solution platform
Try and run the project
When you debug a WindowsFormsControlLibrary in Visual Studio, your DLL is loaded via debug host "UserControlTestContainer.exe" which is built for 'AnyCpu (64 bit preferred)'.
You can find details of this by right clicking the running debug host's task bar, right clicking on its icon, select Properties to find its path, and passing to e.g. ILSpy.
So I think that when the debug host runs as 64 bit, and is passed a 32 bit dll to load, the mismatch in bitness causes Assembly.LoadFrom to fail.
[Edit]
This does seem to be a bug as it prevents (easily) debugging a WinForms control library that has a dependency (e.g. unmanaged code) that is x86 only.
But I doubt that WinForms debugging problems for x86 only are something the VS team would prioritise.
As a workaround you can write your own test container (!) or:
Start the VS command prompt as admin
Make a copy of UserControlTestContainer.exe
Use corflags /32bitreq+ /32bitpref+ <PathToExe> to set the copy to run as x86
Set the copy as the "Start external program" target in debug options
Set the path to your dll as the debug command line argument
This is a common problem that usually means that you are trying to call 64-bit library from 32-bit executable. Make sure you are using 32-bit libraries when you compile for x86.
Related
When running a project in Test or Debug configuration in VB.NET using Visual Studio 2012, sometimes it gives the following error as the reason for "Build Failed"
Error 1 Could not copy the file "obj\Debug\MyProgram.exe" because it was not found. MyProgram
There are no issues with the code as it was just compiled seconds before this (sometimes I start the program again just to see how everything gets laid out visually and then go back to the code to make Location adjustments)
What I found is this. If I wait , when I go to test compile again -- it just magically starts working again -- Only to fail again later.
Sometimes, I can get 10-15 good compiles before it wigs out.
About my system configuration:
I do not have any other version of Visual Studio or standalone .NET language installed
The paths are set correctly (else it would never compile in the first place.. not just occassionaly fail)
The program can be a simple program with absolutely no code added (aka... New > WinForms Project > Compile)
The project, language (and all requirements), and project output path are on a local drive that is connected directly to the PC internally (using C:\code* for projects and the standard install location for Visual Studio 2012)
I checked the smart data and scanned my hard drive for any errors ... none ever encountered. The temperature of my system (CPU), and the drive is around 25-30 degrees C.
I am really baffled as to why this happens and at random. I have also tried completely clearing out the bin/ folder, and even Moving the project or repointing where the compiled output path is.
Deleting the .suo file helps sometimes, but not all the time.
I believe this is something that may be able to be tweaked in the UI somehow, however I do not know anything about manually linking and compiling programs.
Lastly -- it does not matter whether I run VS in "Administrator" mode (elevated privileges) or as a user.
Some methods that may help you
Have you tried to reinstall Visual Studio. If that does not work you may need to install some of Windows Updates, the compiler may be missing some essential libraries/references to compile your application.
Check your .Net Target Framework, setting your application to a new framework that you don't have installed can stop the application from compiling yet even stop it from being debugged, having a compiler that is to low, this may come with errors for the compiler but not for the IDE/Visual Studio to notice.
Try cleaning your project solution's output folder by right clicking your solution then try to rebuild your project/solution.
Check your compilation references in your project's properties, check if a reference added is not on your computer
Reinstall/Update .Net Framework, same here some requirements may be missing from your installation
Try installing a newer version of Visual Studio, try Vs2013 - this contains various improvements and fixes, Visual Studio 2015 is fast approaching, a recommendation install VS2015 when the full version gets released it will contain a lot of useful features for future .net programming.
Create an new Administrator account and Run VS with Administrator rights and try compiling then, this fixes some of problems in vs and other microsoft products, it might work here.
Install all of the .Net Frameworks from the lowest to current 4.5, this may help when some of the used references/libraries are not on your local hard drive.
if none of these methods work, i would not know of the problem one last thing you could try is installing Windows to another hard drive and try using that installation of windows and see what happens... Hope this helps.
Best regards!
I faced this kind of problem because of my virus guard
blocked my application(but it is not have any harmful code :) )
exclude your project folder from virus guard
or
simply disable it(not recommended)
Running an application from Visual Studio 2012 on 64-bit computers, displays the following error message:
Retrieving the COM class factory for component with CLSID {F2D4F4E5-EEA1-46FF-A83B-A270C92DAE4B} failed due to the following error: 80040154 Class not registered (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG))
I am using Inventor packandgo dll library in visualstudio.
Anyone know what is the error?
My problem and the solution
I have a 32 bit third party dll which I have installed in 2008 R2 machine which is 64 bit.
I have a wcf service created in .net 4.5 framework which calls the 32 bit third party dll for process. Now I have build property set to target 'any' cpu and deployed it to the 64 bit machine.
When Ii tried to invoke the wcf service got error "80040154 Class not registered (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG"
Now Ii used ProcMon.exe to trace the com registry issue and identified that the process is looking for the registry entry at HKLM\CLSID and HKCR\CLSID where there is no entry.
Came to know that Microsoft will not register the 32 bit com components to the paths HKLM\CLSID, HKCR\CLSID in 64 bit machine rather it places the entry in HKLM\Wow6432Node\CLSID and HKCR\Wow6432Node\CLSID paths.
Now the conflict is 64 bit process trying to invoke 32 bit process in 64 bit machine which will look for the registry entry in HKLM\CLSID, HKCR\CLSID. The solution is we have to force the 64 bit process to look at the registry entry at HKLM\Wow6432Node\CLSID and HKCR\Wow6432Node\CLSID.
This can be achieved by configuring the wcf service project properties to target to 'X86' machine instead of 'Any'.
After deploying the 'X86' version to the 2008 R2 server got the issue "System.BadImageFormatException: Could not load file or assembly"
Solution to this badimageformatexception is setting the 'Enable32bitApplications' to 'True' in IIS Apppool properties for the right apppool.
The problem is that the DLL is registered on the 32 bit version of the windows registry, and the application is using the 64 bit version.
Solution: Go into the Project Properties, Compile tab and click "Advanced Compile Options...". Change "Target CPU" to x86, click OK, save and try again.
Source:
http://www.theogray.com/blog/2009/10/comexception-regdbeclassnotreg-on-64-bit-windows
Has worked for me with an VB 6 COM DLL invoked from a .Net 4 Winforms application
Somewhere in the code you are using, there is a call to the Win32 API, CoCreateInstance, to dynamically load a DLL and instantiate an object from it.
The mapping between the component ID and the DLL that is capable of instantiating that object is usually found in HEKY_CLASSES_ROOT\CLSID in the registry. To discuss this further would be to explain a lot about COM in Windows. But the error indicates that the COM guid is not present in the registry.
I don't much about what the PackAndGo DLL is (an Autodesk component), but I suspect you simply need to "install" that component or the software package it came with through the designated installer to have that DLL and appropriate COM registry keys on your computer you are trying to run your code on. (i.e. go run setup.exe for this product).
In other words, I think you need to install "Pack and Go" on this computer instead of just copying the DLL to the target machine.
Also, make sure you decide to build your code appropriate as 32-bit vs. 64-bit depending on the which build flavor (32 or 64 bit) of Pack And Go you install.
I had the same problem. I tried lot of ways but at last solution was simple.
Solution:
Open IIS, In Application Pools, right click on the .net framework that is being used.
Go to settings and change 'Enable 32-Bit Applications' to 'True'.
In 64 bit windows machines the COM components need to register itself in HKEY_CLASSES_ROOT\CLSID (64 bit component) OR HKEY_CLASSES_ROOT\Wow6432Node\CLSID (32 bit component) . If your application is a 32 bit application running on 64-bit machine the COM library would typically look for the GUID under Wow64 node and if your application is a 64 bit application, the COM library would try to load from HKEY_CLASSES_ROOT\CLSID. Make sure you are targeting the correct platform and ensure you have installed the correct version of library(32/64 bit).
Long solved I'm sure but this might help some other poor soul.
This error can ocurre if the DLL you are deploying in the install package is not the same as the DLL you are referencing (these will have different IDs)
Sounds obvious but can easily happen if you make a small change to the dll and have previously installed the app on your own machine which reregisters the dll.
I had run into the same problem. I added reference of Microsoft.Office.Interop.Excel COM component's dll but Office was not installed on my system it wont give compile time error. I moved my application to another system and ran it..it worked successfully.
So, I can say in my case it was the system environment which was causing this issue.
I had this problem and I solved it when I understood that it was looking for the Windows Registry specified in the brackets.
Since the error was happening only in one computer, what I had to do was export the registry from the computer that it was working and install it on the computer that was missing it.
I was getting the below error in my 32 bit application.
Error: Retrieving the COM class factory for component with CLSID
{4911BB26-11EE-4182-B66C-64DF2FA6502D} failed due to the following
error: 80040154 Class not registered (Exception from HRESULT:
0x80040154 (REGDB_E_CLASSNOTREG)).
And on setting the "Enable32bitApplications" to true in defaultapplicationpool in IIS worked for me.
For me, I had to install Microsoft Access Database Engine 2010 Redistributable and restart my computer.
This happened to me when I startup eclipse for a workspace and not other workspaces. In that workspace I had a *.ts file opened with "JS editor". Error occurred in spite of having correct file association in Preferences. Other *.ts file opened without error. To get around this, in "Open Resource" (ctrl-shift-r), I used the "Open With" button and selected "JS Editor", and the file opened without problem. After that eclipse knows the editor to use for that file. I solved the problem for one particular file type, but solution probably applies to all file types. Hope this helps someone. Thanks for reading
Check if the MS Office and MS Excel is installed on that server.
I use API to make a programs. It runs pretty well on Windows 7 (with debug file .exe), but it doesn't when I run it on Windows XP. Are there any ways to solve this problem?
I suppose you are using Visual C++, according the the message you get.
Your project is set up (by default) to link the Microsoft C++ Runtime Librairy dynamically, so it saves up space in your final executable, but you need the dynamic linked libraries to be in your system or in your executable's folder.
To solve this in Visual C++, without any afford from who are executing the program in their machines, you can change how MSVC link their runtime library to your executable, that is, if you set it to be linked statically, all the dependencies will be linked inside your final .exe, with no need of additional .dlls.
To change this option, refer to /MD, /MT, /LD (Use Run-Time Library) - MSDN.
Or in short: Project Properties>Configuration Properties>C/C++>Code Generation>Runtime Library
If in debug mode, use /MTd, otherwise use /MT.
I am trying to troubleshoot a VB.NET project that contains UserControls (actually, several of them that are displaying the same issues). I am trying to get them to build under x64, but it is impossible. In x86 or AnyCPU, the UserControl builds and shows up in the Toolbox, so I can add or modify it in the forms that require it. In x64, the controls disappear from the Toolbox, I get warnings during build (the current project builds though), I can't see any of the forms - I get errors (please see below) - and projects that require the project with the form as an import will not build.
When I was studying what these UserControls are so that I can maybe rebuild them from scratch, I downloaded code from a book - great learning tool, but I get the same errors:
Could not find type 'Chap15SampleCode.ListSelector'. Please make sure that the assembly that contains this type is referenced. If this type is a part of your development project, make sure that the project has been successfully built using settings for your current platform or Any CPU.
The variable 'ListSelector1' is either undeclared or was never assigned.
I also get warnings, not sure what to do about them:
Possible problem detected while building assembly 'Chap15SampleCode': Referenced assembly 'mscorlib.dll' targets a different processor
Possible problem detected while building assembly 'Chap15SampleCode': Referenced assembly 'System.Data.dll' targets a different processor
I checked and found System.Data as a Reference is in c:\Windows\Microsoft.NET\Framework... (if I change the target framework to 4.0 the Reference is in c:\ProgramFiles(x86)... that was what my projects had ... and I tried to change it because of the x86, I couldn't, I had a few others in ProgramFiles(x86) and I thought that may be the problem ?)
Reinstalled VS2010, reinstalled Windows - did the same before btw - but I do have a clean system so I can't blame it.
If I can get this simple project to work, I hope the real projects will be easy - Please help me figure out what this is about. Thank you.
You have changed the Platform target setting in the project to x64. This is not appropriate for any project that produces a DLL. The actual bitness of a process that uses your DLL is determined by the EXE that starts the process. Or the host in which your DLL runs, the case for Visual Studio which is a 32-bit process. There is nothing a DLL can do to force the bitness, it can only refuse to get loaded. Which is what you see happening.
Change the setting back to AnyCPU so that your UserControl will work correctly in any process, regardless of its bitness. Including the VS designer. Project + Properties, Build tab. For VB.NET it is located in the Compile tab, Advanced Compile Options button.
I am writing a C# program that interface with COM object through COM interop.
I have a third-party program that register itself as the COM server when I execute the Application. This works fine in 32-bit Windows Vista and I can interface with the interop just fine. (The reference show up in "COM" tab from Visual Studio when you click "Add Reference")
However, the reference does not show up in "COM" tab on my 64-bit Windows 7 machine after I execute the application. Any thoughts, why would this happen? I actually tried using regsvr32.exe to register the application manually but it didn't work either (error message saying "entry-point DllRegisterServer was not found)
You are not going to be able to use it as long as it doesn't show up in the COM tab. The regsvr32.exe utility is for DLLs, this however sounds like an EXE. If it is a DLL then it needs to be registered with the 32-bit version of regsvr32.exe, the one in c:\windows\syswow64. If it is an EXE then the normal way to get it to register itself is by running it with the /regserver command line option.
Mumble.exe /RegServer
Additionally, if this is a DLL or an EXE for which you don't have a 64-bit proxy/stub then you'll have to force your app to run in 32-bit mode. Project + Properties, Build tab, Platform Target = x86.
If all else fails, you really do need support from the vendor of this program. Surely they'll have an update available that is verified to work properly on 64-bit operating systems. If they are no longer around, running this in a virtual machine is always a possibility.
If it is a managed dll then you might try using RegAsm
REGASM AssemblyName.dll /tlb:AssemblyName.tlb
You may find this helpful as I needed to recompiled and build 64 bit proxy stub for the COM server from C++ myself and it kept failing when trying to register the server using /regserver. Here is and thread from miscrosoft that helped me resolved this issue. Basically you need to use this instead /RegServerPerUser, but go through the thread if you get into this situation after the answers from above.
http://social.msdn.microsoft.com/Forums/en/vcprerelease/thread/11f01ceb-52a4-438f-b7ef-727ce7a3e191