An error occurred when the workflow was being created. Try to save the workflow again in CRM 4.0

Suddenly got experienced with the below error while publishing workflow in crm onpremise 4.0 version :

After searching on it I got few lines need to add in web.config file in crm server & other solution is try to check with tracing by enabling it using Crm Dialog Tool, get the trace logs & analyse the logs using Crm trace log viewer in server itself where the crm has been installed.Please follow the below link:
https://danielcventer.wordpress.com/mscrm-4-0/troubleshooting-crm-4-0/running-crm-4-0-trace-diagnostic-tool/

The below lines I have added in web.config file, but before adding this take backup first :

<authorizedType Assembly="System.Workflow.Activities, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" Namespace="System.Workflow.Activities.Rules" TypeName="RuleSetReference" Authorized="True" />

     <authorizedType Assembly="System.Workflow.Activities, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" Namespace="System.Workflow.Activities.Rules" TypeName="RuleConditionReference" Authorized="True" />

     <authorizedType Assembly="System.Workflow.Activities, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" Namespace="System.Workflow.Activities.Rules" TypeName="RuleDefinitions" Authorized="True" />

     <authorizedType Assembly="System.Workflow.Activities, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" Namespace="System.Workflow.Activities.Rules" TypeName="RuleSet" Authorized="True" />

     <authorizedType Assembly="System.Workflow.Activities, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" Namespace="System.Workflow.Activities.Rules" TypeName="Rule" Authorized="True" />

     <authorizedType Assembly="System.Workflow.Activities, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" Namespace="System.Workflow.Activities.Rules" TypeName="RuleStatementAction" Authorized="True" />

     <authorizedType Assembly="System.Workflow.Activities, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" Namespace="System.Workflow.Activities.Rules" TypeName="RuleExpressionCondition" Authorized="True" />

     <authorizedType Assembly="System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" Namespace="System.CodeDom" TypeName="CodeAssignStatement" Authorized="True" />

     <authorizedType Assembly="System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" Namespace="System.CodeDom" TypeName="CodeExpressionStatement" Authorized="True" />

     <authorizedType Assembly="System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" Namespace="System.CodeDom" TypeName="CodePrimitiveExpression" Authorized="True" />

     <authorizedType Assembly="System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" Namespace="System.CodeDom" TypeName="CodeMethodInvokeExpression" Authorized="True" />

     <authorizedType Assembly="System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" Namespace="System.CodeDom" TypeName="CodePropertyReferenceExpression" Authorized="True" />

     <authorizedType Assembly="System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" Namespace="System.CodeDom" TypeName="CodeThisReferenceExpression" Authorized="True" />

     <authorizedType Assembly="System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" Namespace="System.CodeDom" TypeName="CodeFieldReferenceExpression" Authorized="True" />

     <authorizedType Assembly="System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" Namespace="System.CodeDom" TypeName="CodeMethodReferenceExpression" Authorized="True" />

     <authorizedType Assembly="System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" Namespace="System.CodeDom" TypeName="CodeBinaryOperatorExpression" Authorized="True" />

     <authorizedType Assembly="System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" Namespace="System.CodeDom" TypeName="CodeTypeReferenceExpression" Authorized="True" />

     <authorizedType Assembly="System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" Namespace="System.CodeDom" TypeName="CodeCastExpression" Authorized="True" />

     <authorizedType Assembly="System.Workflow.ComponentModel, Version=3.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35" Namespace="System.Workflow.ComponentModel.Serialization" TypeName="TypeExtension" Authorized="True" />

And finally, it get worked. Hope this will help someone.

Happy CRMing...!