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Can´t open my c# app on some Windows 7 computers

I´m receiving the following logs from the system events. I have no idea why this only happens on some machines:
Level: Information; Source: Windows Error Reporting
Detail: 756021398 30 CLR20r3 Not available 0 DayZ Ambient Launcher.exe 1.0.0.0 59d3d3b2 System.Windows.Forms 4.7.2558.0 59d4145b 63d 36 PSZQOADHX1U5ZAHBHOHGHLDGIY4QIXHX
C:\Users\kevo1414\AppData\Local\Temp\WERAA52.tmp.WERInternalMetadata.xml C:\ProgramData\Microsoft\Windows\WER\ReportArchive\AppCrash_DayZ Ambient Lau_4e74decfa163bcb1cc9a3fc7dd961b8b6b975b8_108bafbf
0 093ea276-bf39-11e7-b709-902b345e4b59 0
Level: Error Source: Application Error
Detail:
DayZ Ambient Launcher.exe 1.0.0.0 59d3d3b2 KERNELBASE.dll 6.1.7601.23915 59b94abb e0434352 0000c54f 1498 01d35345cae21649 C:\Users\kevo1414\Downloads\DayZ Ambient Launcher 1.1 [eXWoLL,Cobblest0ne]\DayZ Ambient Launcher.exe C:\Windows\syswow64\KERNELBASE.dll 093ea276-bf39-11e7-b709-902b345e4b59
Level: Error Source: .NET Runtime
Detail:
Application: DayZ Ambient Launcher.exe Framework Version: v4.0.30319 >Description: The process was terminated due to an unhandled exception. Exception Info: System.Runtime.InteropServices.COMException at System.Windows.Forms.UnsafeNativeMethods.CoCreateInstance(System.Guid ByRef, System.Object, Int32, System.Guid ByRef) at System.Windows.Forms.AxHost.CreateWithLicense(System.String, System.Guid) at System.Windows.Forms.AxHost.CreateInstanceCore(System.Guid) at System.Windows.Forms.AxHost.CreateInstance() at System.Windows.Forms.AxHost.GetOcxCreate() at System.Windows.Forms.AxHost.TransitionUpTo(Int32) at System.Windows.Forms.AxHost.CreateHandle() at System.Windows.Forms.Control.CreateControl(Boolean) at System.Windows.Forms.Control.CreateControl(Boolean) at System.Windows.Forms.AxHost.EndInit() at dayz64.Form1.InitializeComponent() at dayz64.Form1..ctor() at dayz64.Program.Main()

There are two possible causes that I can see: operating system mismatch, or .NET installation mismatch.
Windows 7 was around right when x64 was being introduced, so there are some installations that either use x32 or x64, and going between them can result in issues if you don't install the right version of the application.
If you're going to run this application on a Windows 7 computer, then open the Start Menu, right click on Computer, and click on properties. You can see the specs of the operating system you're running from there.
The second possible issue is a .NET installation issue - maybe you have an outdated version of .NET installed, or the application relies on a legacy version of .NET and can't run on the newer frameworks, in which case you would need to look up the specifications of the product and the version you're using.
Hope this helped!

Could not run xamarin application with SQLite.NET-PCL on iPad [duplicate]

This question already has answers here:
Undefined symbols for architecture armv7
(40 answers)
Closed 6 years ago.
I have created an new application with a simple test which works fine every time with iOSSimulator, but doesnt work when i try to run on my iPad. On my application, i only have the SQLite.NET-PCL 3.1.1 installed by nuget and my controller only makes a call to create a database.
When a try on iPad, the console give me the following error:
MTOUCH: error MT3001: Could not AOT the assembly '/Users/delogic/Projects/iosSingleView/iosSingleView/obj/iPhone/Debug/build-ipad3.1-9.3.2/mtouch-cache/Build/SQLite.Net.Platform.XamarinIOS.Unified.dll'
The following lines on the log caught my attention:
Undefined symbols for architecture armv7:
"_sqlite3_busy_timeout", referenced from:
wrapper_managed_to_native_SQLite_Net_Platform_XamarinIOS_SQLiteApiIOSInternal_sqlite3_busy_timeout_intptr_int in SQLite-5f40c7.o
"_sqlite3_close", referenced from:
wrapper_managed_to_native_SQLite_Net_Platform_XamarinIOS_SQLiteApiIOSInternal_sqlite3_close_intptr in SQLite-5f40c7.o
"_sqlite3_errmsg16", referenced from:
wrapper_managed_to_native_SQLite_Net_Platform_XamarinIOS_SQLiteApiIOSInternal_sqlite3_errmsg16_intptr in SQLite-5f40c7.o
"_sqlite3_finalize", referenced from:
wrapper_managed_to_native_SQLite_Net_Platform_XamarinIOS_SQLiteApiIOSInternal_sqlite3_finalize_intptr in SQLite-5f40c7.o
"_sqlite3_open_v2", referenced from:
wrapper_managed_to_native_SQLite_Net_Platform_XamarinIOS_SQLiteApiIOSInternal_sqlite3_open_v2_byte___intptr__int_intptr in SQLite-5f40c7.o
ld: symbol(s) not found for architecture armv7
clang: error: linker command failed with exit code 1 (use -v to see invocation)
I guess which for some reason, my file is missing some methods.Does anyone have the same problem? i will upload the project sample and the full log.
link for log and project download

i got this resolved. Its was a bug on xamarin studio which got fixed when i choosed the update channel to alpha

C# windows application Event: CLR20r3 on application start

I created a C# application and installed it on my test box. My app works perfect on my dev box, but when I install in on a different machine it crashes in the Main(). I get the EventType: CLR20r3
here is the Event Message
Problem signature:
Problem Event Name: CLR20r3
Problem Signature 01: logfileviewer.exe
Problem Signature 02: 1.0.0.0
Problem Signature 03: 4f356c9c
Problem Signature 04: LogFileViewer
Problem Signature 05: 1.0.0.0
Problem Signature 06: 4f356c9c
Problem Signature 07: 94
Problem Signature 08: 44
Problem Signature 09: System.IO.FileNotFoundException
OS Version: 6.1.7601.2.1.0.256.1
Locale ID: 1033
Additional Information 1: 0a9e
Additional Information 2: 0a9e372d3b4ad19135b953a78882e789
Additional Information 3: 0a9e
Additional Information 4: 0a9e372d3b4ad19135b953a78882e789
I used the details and looked up the error code in IL Disassembler and cam back with the following...
Method #5 (06000094)
-------------------------------------------------------
MethodName: .ctor (06000094)
Flags : [Public] [HideBySig] [ReuseSlot] [SpecialName] [RTSpecialName] [.ctor] (00001886)
RVA : 0x000081d0
ImplFlags : [IL] [Managed] (00000000)
CallCnvntn: [DEFAULT]
hasThis
ReturnType: Void
No arguments.
.NET 4.0 has been uninstalled and re installed on the system and did not change anything. I have searched all over the net and everyone with the same problem do not seem to have a solution. I have now spent a day and a half on this problem. I would hate to miss my deadline do to not being able to launch the application.
This is the only code in my Main()
static void Main()
{
Application.EnableVisualStyles();
Application.SetCompatibleTextRenderingDefault(false);
Application.Run(new frmMain());
}
Here are the details from the Event Viewer
Application: LogFileViewer.exe
Framework Version: v4.0.30319
Description: The process was terminated due to an unhandled exception.
Exception Info: System.IO.FileNotFoundException
Stack:
at LogFileViewer.frmMain.InitializeComponent()
at LogFileViewer.frmMain..ctor()
at LogFileViewer.Program.Main()
EventData
Application: LogFileViewer.exe
Framework Version: v4.0.30319
Description: The process was terminated due to an unhandled exception.
Exception Info: System.IO.FileNotFoundException
Stack: at LogFileViewer.frmMain.InitializeComponent() at LogFileViewer.frmMain..ctor() at LogFileViewer.Program.Main()
Not sure how the designer can have a FileNotFound Exception. I am using the DotNetBar.dll and I am referencing it out of the install directory, so that should be good. I can post my designer if you want, but there is quite a bit there.

I've seen this same problem when my application depended on a referenced assembly that was not present on the deployment machine. I'm not sure what you mean by "referencing DotNetBar out of the install directory" - make sure it's set to CopyLocal=true in your project, or exists at the same full path on both your development and production machine.

I encountered the same problem when I built an application on a Windows 7 box that had previously been maintained on an XP machine.
The program ran fine when built for Debug, but failed with this error when built for Release. I found the answer on the project's Properties page. Go to the "Build" tab and try changing the Platform Target from "Any CPU" to "x86".

.NET has two CLRs 2.0 and 4.0. CLR 2.0 works till .NET framework 3.5. CLR 4.0 works from .NET 4.0 onwards. Its possible that your solution is using a different CLR than your reference assemblies. In your local development environment, you might have both the CLRs and hence you did not faced any problem. However when you moved to deployment environments, they might have a single CLR only and you got this error.

Have been fighting this all morning and now have it solved and why it happened. Posting with the hope it helps others
I installed the Krypton.Toolkit which added the tools to the Visual studio toolbox automatically. I then added the tools to the designer, which automatically added the dll to the projrect references, however the toolkit was marked as CopyLocal=false
I built an installer, using all dlls in the release build folder (of course the above dll wasn't there).
Setting copylocal=true, then rebuilding the installer, everything worked fine.

To solve CLR20r3 problem set - Local User Policy \ Computer Configuration \ Windows Settings \ Security Settings \ Local Policies \ Security Options - System cryptography: Use FIPS 140 compliant cryptographic algorithms, including encryption, hashing and signing - Disable

.NET application won't open in windows 7

I created a pretty simple c# application using visual studio 2010 on windows xp. It compiles, runs and debugs fine on my machine. I even built it for release and ran the .exe on my machine and another windows xp machine perfectly fine. When I send the release folder with the .exe file and they open it, nothing happens! No errors or anything, just blank!
.NET version 4 framework installed
It is a windows form application.
UPDATE: Details from OP's comments given to one of the answers below:
Hey everyone, thanks for the ideas. I
copied what I found on my friends
windows 7 machine event log and this
is what it said:
Application: ePrescribing.exe Framework Version: v4.0.30319
Description: The process was
terminated due to an unhandled
exception. Exception Info:
System.IO.FileNotFoundException Stack:
at
ePrescribing.frmApp.InitializeComponent()
at ePrescribing.frmApp..ctor() at
ePrescribing.Program.Main()
Faulting application name: ePrescribing.exe, version: 1.0.0.0,
time stamp: 0x4d61e693 Faulting module
name: KERNELBASE.dll, version:
6.1.7600.16385, time stamp: 0x4a5bdbdf Exception code: 0xe0434352 Fault
offset: 0x0000b727 Faulting process
id: 0xb38 Faulting application start
time: 0x01cbe1dbe6d4ba2d Faulting
application path:
C:\Users\Duane\Downloads\ePrescribing.exe
Faulting module path:
C:\Windows\syswow64\KERNELBASE.dll
Report Id:
266adc61-4dcf-11e0-8438-e0cb4e197cde –
Fault bucket , type 0 Event Name: CLR20r3 Response: Not available
Cab Id: 0 Problem signature: P1:
eprescribing.exe P2: 1.0.0.0 P3:
4d61e693 P4: ePrescribing P5: 1.0.0.0
P6: 4d61e693 P7: 28 P8: e P9:
System.IO.FileNotFoundException P10: –
I removed the only area where I
thought there would be a file load
(for the picturebox loading
profile.jpg) and still got the same
error. Any ideas?

First, you might try checking the Event Viewer for any relevant errors messages (as stated above).
Next, make sure they have .NET installed (as stated above).
Then, try adding an UnhandledExceptionEventHandler to your application and in that handler, try to at least write a simple log/text file containing the exception that caused your application to exit.

Make sure the latest .NET framework is installed.

Check .NET framework installed on win7 computer equal your application framework target.
Check in the process explorer that it's running but didn't show you anything.
Check event log for crash reports.
Try to add logging to your application in different places and add unhandled error handlers.

Additionly to other answers I would also check whether your app compiled against x86/x64 runtime

Have you included a manifest file?
Take a look at this.
Or this...

Are you accessing any folders via static paths instead of environment variables? That could cause issues between these versions of Windows.

You should check if all other third party assemblies can be found either in GAC or app folder

Referenced assembly may be missing from target computer. Please set Copy Local=True for all referenced library. This may solve your issue.

WPF Application doesn't work on some machines: Stopped working error

My WPF application works fine on a number of machines, but now I get a report about this error on a user machine:
Description:
Stopped working
Problem signature:
Problem Event Name: CLR20r3
Problem Signature 01: mysoftware.exe
Problem Signature 02: 1.0.0.1
Problem Signature 03: 4bbcd9d9
Problem Signature 04: PresentationFramework
Problem Signature 05: 3.0.0.0
Problem Signature 06: 4a174fbc
Problem Signature 07: 624f
Problem Signature 08: e1
Problem Signature 09: System.Windows.Markup.XamlParse
OS Version: 6.1.7600.2.0.0.256.48
Locale ID: 1033
I was trying to catch Exception using Application DispatcherUnhandledException but this didn't help. And warping Window1 constructor in try/catch block too.
.NET Framework 3.5 is installed on that machine.
How can I figure out the reason of crashing: log this error, debug, ...?

Just verify you have installed .Net Framework 3.5sp1.

The fact that there is a mention of XAML parsing would lead me to check whether the XAML is corrupt on that particular machine. The easiest way to check it is well formed is to rename it to .xml and open it with Internet Explorer. (Even if it is well formed it could still have a problem of some sort.)
If it is a ClickOnce deployed app, I would suggest clearing the local cache of the application and relaunching to see if this clears the problem up.

I think the main issue is the fact that the XAML file cannot be loaded.
That can stem from several problems:
Is the file meant to be deployed alongside the dll? Is it present
Is the client using a different UI culture than the others? Are there any satellite assemblies?
What version of the .Net framework is installed? Is it perchance a Client Profile only install?
Cheers!