ESB 2.2 EsbImportUtil.exe The type initializer for 'Microsoft.Practices.ESB.Configuration.ConfigHelper' throw exception

Question

when importing the itineries using ESB 2.2 EsbImportUtil.exe following error is displayed I have EnterpriseLibrary 5 installed and GAC contain EnterpriseLibrary 4.1 dll also.

The type initializer for 'Microsoft.Practices.ESB.Configuration.ConfigHelper' threw an exception.[A]Microsoft.Practices.EnterpriseLibrary.Common.Configuration.ConfigurationSourceSection cannot be cast to [B]Microsoft.Practices.EnterpriseLibrary.Common.Configuration.ConfigurationSourceSection. Type A originates from 'Microsoft.Practices.EnterpriseLibrary.Common, Version=5.0.414.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' in the context 'Default' at location 'C:\WINDOWS\assembly\GAC_MSIL\Microsoft.Practices.EnterpriseLibrary.Common\5.0.414.0__31bf3856ad364e35\Microsoft.Practices.EnterpriseLibrary.Common.dll'. Type B originates from 'Microsoft.Practices.EnterpriseLibrary.Common, Version=4.1.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35' in the context 'Default' at location 'C:\WINDOWS\assembly\GAC_MSIL\Microsoft.Practices.EnterpriseLibrary.Common\4.1.0.0__31bf3856ad364e35\Microsoft.Practices.EnterpriseLibrary.Common.dll'.

Thanks for the help

Answer 1

Have you made any changes to esb.config file. Added new orchestation, try removing it. I had similar issue; fixed by removing wrong configuration.

Check:- http://social.msdn.microsoft.com/Forums/en-US/bf2446fd-87fb-462a-8b78-cde7026bfdf5/the-type-initialize-for-microsoftpracticesesbconfigurationconfighelper-threw-an-exception?forum=biztalkesb