Could not load file or assembly log4net Version 1 2 10 0 Culture neutral PublicKeyToken 692fbea5521e1304

Question

I m using vs2010 and crystal report version 13 0 2000 0  system 64bit crystal report runtime 64bit  my application is running fine on development machine but when i m deploying on server  getting this error     Could not load file or assembly  log4net  Version 1 2 10 0    Culture neutral  PublicKeyToken 692fbea5521e1304  or one of its   dependencies  The system cannot find the file specified    Description  An unhandled exception occurred during the execution of   the current web request  Please review the stack trace for more   information about the error and where it originated in the code       Exception Details  System IO FileNotFoundException  Could not load   file or assembly  log4net  Version 1 2 10 0  Culture neutral    PublicKeyToken 692fbea5521e1304  or one of its dependencies  The   system cannot find the file specified    Source of error       CR CrystalReportViewer ID  CrystalRportViewrRegistration  runat  server  AutoDataBind  true    and I have checked GAC assembly I didn t find log4net dll and even in my system I have search all and tried various things like changing runtime version and uploading lo4net dll from apache but no luck

User · Answer

I tried all of that things and it doesn t worked for me    I Just installed SAPCrystalReport in my computer and it s working now

User · Answer

I faced same issue  VS 2015   but my application is running under 32-bit application pool  So even though machine is 64-bit  I installed 32-bit installation and it works

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For this specific error  I installed version 20 of Crystal Report and it solved my problem  https   www tektutorialshub com crystal-reports crystal-reports-download-for-visual-studio  Service-Pack-16  You can also download the file alone using the following link https   www nuget org api v2 package log4net 1 2 10 rename the file to  zip and extract it

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Error  While using Visual Studio 2015 in win 10 64 bit machine   Could not load file or assembly  log4net  Version 1 2 10 0  Culture neutral  PublicKeyToken 692fbea5521e1304  or one of its dependencies  The system cannot find the file specified  Solution  Open IIS Go to current server      gt  Application Pools Select the application pool your 32-bit application will run under Click Advanced setting or Application Pool Default Set Enable 32-bit Applications to True The above solution is solved my problem  Thanks

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If you don t see log4net dll in  systemdrive  windows assembly  on the machine you are attempting to deploy it on  it is likely you haven t successfully installed the redistributable for Crystal Reports for  Net Framework 4 0  Install  or reinstall  the latest service pack from http   scn sap com docs DOC-7824  SAP Crystal Reports  developer version for Microsoft Visual Studio Updates  amp  Runtime Downloads   That runtime distribution should add log4net to the GAC along with a bunch of CrystalDecisions dll s

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To configure IIS to run 32-bit applications you must follow these steps   Open IIS Go to current server      gt  Application Pools Select the application pool your 32-bit application will run under Click Advanced setting or Application Pool Default Set Enable 32-bit Applications to True   If this option is not available to you  follow these next steps   Go to  windir  system32 inetsrv  Execute the appcmd exe tool

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Ensure version for correct platform  32-bit or 64-bit  is installed  I faced same issue when installed 32-bit run-time on 64-bit machine  Installing correct one  i e  64-bit  resolved the issue

User · Answer

To configure IIS to run 32-bit applications you must follow these steps   Open IIS Go to current server       Application Pools Select the application pool your 32-bit application will run under Click Advanced setting or Application Pool Default Set Enable 32-bit Applications to True  This solution worked for me  thanks

User · Answer

So in general dll has to be placed in two places    GAC   can have 32 and 64 versions of dll s   your project bin     folder   Thus  you just need add reference to log4net dll    In your case 32-bit with PublicKeyToken 692fbea5521e1304   You can achive that by   downloading log4net dll separately and add reference to it dowloading SAP crystal report SDK  32 bit  https   wiki scn sap com wiki display BOBJ Crystal Reports 2C Developer for Visual Studio Downloads

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If you are building a windows app try to build as x64 instead of Any CPU  It should work fine

[crystal-reports-2010] Could not load file or assembly 'log4net, Version=1.2.10.0, Culture=neutral, PublicKeyToken=692fbea5521e1304'

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