C windows application Event CLR20r3 on application start

Question

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

User · Answer

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

User · Answer

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

User · Answer

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

User · Answer

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

User · Answer

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

[c#] C# windows application Event: CLR20r3 on application start

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