How do I fix a NET windows application crashing at startup with Exception code 0xE0434352

Question

I ve built a  NET Windows Forms application in Visual Studio 2010  I also built a corresponding setup install package via Visual nbsp Studio nbsp 2010  This is built as a 32-bit  x86  application   We make use of third-party Windows Forms controls that are 32-bit only    I am able to run the setup package and deploy successfully to other Windows nbsp 7 64-bit environments and 32 bit Windows nbsp XP boxes  The installed application runs fine on these   However  when I attempt to run Windows Server 2008 R2 - 64 bit  the application crashes at startup  It installed successfully via the installer without any errors   It appears to crash when loading the application  I put a message box as the first line in the application to see if it got past loading  The message box doesn t show up  so I assume that it occurs during loading init of the application   So far I haven t found much to go on  From the Details I see the following   Exception Code  E0434352   I ve fished around googled to see if there was anything obvious  but I saw nothing  I saw some references to a possible stack overflow in the CLR   The Windows Forms application is built with the following references    DevExpress Infragistics Winforms controls ORACLE DataAccess DLL RabbitMQ   What is the issue  How do I approach figuring this out  How do I debug to get more useful information

User · Answer

I was fighting with this a whole day asking my users to run debug versions of the software. Because it looked like it didn't run the first line. Just a crash without information.

Then I realized that the error was inside the form's InitializeComponent.

The way to get an exception was to remove this line (or comment it out):

System.Diagnostics.DebuggerStepThrough()

Once you get rid of the line, you'll get a normal exception.

User · Answer

Issue     Net application code aborts before it starts its execution  Console application or Windows application      Error received  Aborted with Error code  E0434352    Exception  Unknown exception     Scenario 1     When an application is already executed  which have used some of the dependent resources and those resources are still in use with the application executed  when another application or the same exe is triggered from some other source then one of the app throws the error     Scenario 2     When an application is triggered by scheduler or automatic jobs  it may be in execution state at background  meanwhile when you try to trigger the same application again  the error may be triggered      Solution    Create an application  when  amp  where the application release all its resources as soon as completed Kill all the background process once the application is closed Check and avoid executing the application from multiple sources like Batch Process  Task Scheduler and external tools at same time  Check for the Application and resource dependencies and clean up the code if needed

User · Answer

If you are getting that error from Event Viewer  you should see another error event  at least one  from the Source   NET Runtime   Look at that error message as it will contain the Exception info

User · Answer

I know this is a somewhat old thread  but I had this problem too with a c  WPF app I was creating   The app worked fine on the development machine  but would not start on the test machine   The Application Log in the Event Viewer gave a somewhat nebulous  NET Runtime error of System IO DirectoryNotFoundException     I tried using some debugging software but the app would not stay running long enough to attach the debugger to the process   After banging my head against my desk for a day and looking at many web pages like this one  what I wound up doing to troubleshoot this was to install VS2019 on my test machine   I then dragged the  exe file from its folder  it was deep in the Users user  AppData Apps 2 0    folder  to the open VS2019 instance and went to start it from there   Immediately  it came up with a dialog box giving the exception and the cause     In my case  when I added an icon to one of the forms  the complete path to the icon was placed into the XAML instead of just the icon name   I had copied the icon file into the project folder  but since the project folder does not exist on the test machine  this was the root cause of the error   I then removed the path from the XAML  leaving just the icon name one  rebuilt the solution and re-published it  and it ran just fine on the test machine now   Of course there are many causes besides what gave me the error  but this method of troubleshooting should hopefully identify the root cause of the error  since the Windows Event Viewer gives a somewhat vague answer   To summarize  use Visual Studio on the test machine as a debugger of sorts   But  to get it to work right  I had to drag the  exe file into the IDE and Start  run  it from there    I believe this will also work with VS2017 as well as VS2019   Hopefully this helps someone who is still having this issue

User · Answer

To fix the issue for me  as a number of applications started to throw this exception all of a sudden  for example  CorelDraw X6 being one   I uninstalled the  NET 4 5 runtime and installed the  NET 4 runtime  The two versions cannot be installed side by side  but they use the same version numbers in the GAC  This causes issues as some of the functions have been depreciated in 4 5   DLL Hell has returned

User · Answer

So   I had noticed in event viewer that this crash corresponded to a   System IO FileNotFoundException  error    So I fired ProcMon and noticed that one of the program dlls was failing to load vcruntime140   So I simply installed vs15 redist and it worked

User · Answer

I was getting this when the app deployed  In my case  I chose  This is a full trust application  on the project security tab  and that fixed it

User · Answer

It looks like this error 0xe0434352 applies to a number of different errors   In case it helps anyone  I ran into this error when I was trying to install my application on a new Windows 10 installation   It worked on other machines  and looked like the app momentarily would start before dying  After much trial and error the problem turned out to be that the app required DirectX9   Though a later version of DirectX was present it had to have version 9   Hope that saves someone some frustration

User · Answer

0xE0434352 is the exception code for all  NET exceptions so that won t tell you much  How did you got this exception code  The event log   Your best bet is to use a debugger to get more information  If the Visual Studio debugger won t help you  then you might need to check out WinDbg with SOS  See here and here for an introduction  Let it break on the exception  and see if you can get more information on the why   If you suspect it is an issue when loading assemblies you might want to check out the Fusion Log

User · Answer

I m not sure if this will help anyone or not  but since it was my problem  I figure it s worth mentioning   I was getting this error  and it turned out to be a problem with the platform for which the EXE was built  We had it building for x86  and it needed to be x64  because of an Oracle reference in the project  When we made that change  the problem went away  So  see if you have any similar conflicts

User · Answer

We got this error when the connection string to our database was incorrect  The key to figuring this out was running the dotnet blah dll which provided a stacktrace showing us that the sql server instance specified could not be found  Hope this helps someone

[c#] How do I fix a .NET windows application crashing at startup with Exception code: 0xE0434352?

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