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PODynamicActivity validation error in CRM 2011 workflow
 

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  1. PODynamicActivity validation error in CRM 2011 workflow
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    <p>I was building a workflow for a custom lead qualifying. I build a workflow in CRM and I am invoking the custom workflow activity passing the lead reference as an input parameter and I expect the reference of the created account as a return parameter.</p> <p>The code is:</p> <pre class="lang-C# prettyprint-override"><code>using System; using Microsoft.Xrm.Sdk; using Microsoft.Xrm.Sdk.Workflow; using Microsoft.Xrm.Sdk.Query; using System.Activities; using Microsoft.Crm.Sdk.Messages; namespace Quicksale { /// &lt;summary&gt; /// Provide the functionality to qualify a lead /// &lt;/summary&gt; public class QualifyLead : CodeActivity { #region Parameters [Input("EntityReference leadIn")] [ReferenceTarget("lead")] public InOutArgument&lt;EntityReference&gt; LeadReference { get; set; } [Output("newAccount")] [ReferenceTarget("account")] [RequiredArgument] public OutArgument&lt;EntityReference&gt; accountRef { get; set; } #endregion Parameters public Guid existingAccount(Guid leadId, IOrganizationService service) { QueryExpression accQuery = new QueryExpression("account"); ColumnSet accColumnSet = new ColumnSet("accountid"); accQuery.ColumnSet = accColumnSet; accQuery.Criteria = new FilterExpression(); accQuery.Criteria.FilterOperator = LogicalOperator.Or; accQuery.Criteria.AddCondition("originatingleadid", ConditionOperator.Equal, leadId); accQuery.Criteria.AddCondition("custom_editableoriginatinglead", ConditionOperator.Equal, leadId); EntityCollection retrieved = service.RetrieveMultiple(accQuery); Guid retrievedAccount = Guid.Empty; // Iterate through returned collection. foreach (var c in retrieved.Entities) { retrievedAccount = new Guid(c.Attributes["accountid"].ToString()); return retrievedAccount; } return Guid.Empty; } public Guid existingContact(Guid leadId, IOrganizationService service) { QueryExpression contQuery = new QueryExpression("contact"); ColumnSet contColumnSet = new ColumnSet("contactid"); contQuery.ColumnSet = contColumnSet; contQuery.Criteria = new FilterExpression(); contQuery.Criteria.FilterOperator = LogicalOperator.Or; contQuery.Criteria.AddCondition("originatingleadid", ConditionOperator.Equal, leadId); contQuery.Criteria.AddCondition("custom_editableoriginatinglead", ConditionOperator.Equal, leadId); EntityCollection retrieved = service.RetrieveMultiple(contQuery); Guid retrievedContactId = Guid.Empty; // Iterate through returned collection. foreach (var c in retrieved.Entities) { retrievedContactId = new Guid(c.Attributes["contactid"].ToString()); return retrievedContactId; } return Guid.Empty; } /// &lt;summary&gt; /// Overridden Execute() function to provide functionality to the workflow. /// &lt;/summary&gt; /// &lt;param name="executionContext"&gt;Execution context of the Workflow&lt;/param&gt; /// &lt;returns&gt;&lt;/returns&gt; protected override void Execute(CodeActivityContext executionContext) { #region context //Create the context IWorkflowContext context = executionContext.GetExtension&lt;IWorkflowContext&gt;(); IOrganizationServiceFactory serviceFactory = executionContext.GetExtension&lt;IOrganizationServiceFactory&gt;(); IOrganizationService service = serviceFactory.CreateOrganizationService(context.UserId); ITracingService tracingService = executionContext.GetExtension&lt;ITracingService&gt;(); #endregion context tracingService.Trace("Retrieving lead..."); Entity leadEntity = Helper.ActualEntity(LeadReference.Get(executionContext), service); tracingService.Trace("Lead retrieved."); tracingService.Trace("Qualifying lead..."); QualifyLeadRequest req = new QualifyLeadRequest(); Guid leadId = new Guid(leadEntity.Attributes["leadid"].ToString()); req.LeadId = new EntityReference("lead", leadId); //Set the lead to qualified status req.Status = new OptionSetValue(3); //choose what records to create from the lead tracingService.Trace("Checking if lead has already been qualified as an account..."); Guid accountId = existingAccount(leadId, service); tracingService.Trace("If lead has already been qualified as an account checked."); req.CreateAccount = accountId == Guid.Empty; tracingService.Trace("Checking if lead has already been qualified as a contact..."); req.CreateContact = existingContact(leadId,service)==Guid.Empty; tracingService.Trace("If lead has already been qualified as a contact checked."); req.CreateOpportunity = false; QualifyLeadResponse resp = (QualifyLeadResponse)service.Execute(req); tracingService.Trace("Lead qualified."); tracingService.Trace("Retrieving account id..."); if (accountId == Guid.Empty) { accountId = existingAccount(leadId, service); } tracingService.Trace("Account id retrieved."); tracingService.Trace("Setting output account reference..."); accountRef.Set(executionContext, new EntityReference("account", accountId)); tracingService.Trace("Output account reference set."); } } } </code></pre> <p>When I execute the workflow I get this error:</p> <pre><code>Unhandled Exception: System.ServiceModel.FaultException`1[[Microsoft.Xrm.Sdk.OrganizationServiceFault, Microsoft.Xrm.Sdk, Version=5.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35]]: The following errors were encountered while processing the workflow tree:&amp;#13;&amp;#10;&amp;#39; DynamicActivity&amp;#39;: The private implementation of activity &amp;#39;1: DynamicActivity&amp;#39; has the following validation error: Compiler error(s) encountered processing expression &amp;quot;DirectCast(CustomActivityStep13_1_converted, Microsoft.Xrm.Sdk.EntityReference)&amp;quot;.Invalid L-value expression.:Reference expressions cannot end with Conversion. The provided expression&amp;#39;s type must exactly match the type T of VisualBasicReference&amp;lt;T&amp;gt; or LambdaReference&amp;lt;T&amp;gt;.Detail: &lt;OrganizationServiceFault xmlns:i="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://schemas.microsoft.com/xrm/2011/Contracts"&gt; &lt;ErrorCode&gt;-2147220970&lt;/ErrorCode&gt; &lt;ErrorDetails xmlns:d2p1="http://schemas.datacontract.org/2004/07/System.Collections.Generic" /&gt; &lt;Message&gt;The following errors were encountered while processing the workflow tree:&amp;amp;#13;&amp;amp;#10;&amp;amp;#39;DynamicActivity&amp;amp;#39;: The private implementation of activity &amp;amp;#39;1: DynamicActivity&amp;amp;#39; has the following validation error: Compiler error(s) encountered processing expression &amp;amp;quot;DirectCast(CustomActivityStep13_1_converted, Microsoft.Xrm.Sdk.EntityReference)&amp;amp;quot;.Invalid L-value expression.:Reference expressions cannot end with Conversion. The provided expression&amp;amp;#39;s type must exactly match the type T of VisualBasicReference&amp;amp;lt;T&amp;amp;gt; or LambdaReference&amp;amp;lt;T&amp;amp;gt;.&lt;/Message&gt; &lt;Timestamp&gt;2013-09-25T08:40:17.2376169Z&lt;/Timestamp&gt; &lt;InnerFault&gt; &lt;ErrorCode&gt;-2147220970&lt;/ErrorCode&gt; &lt;ErrorDetails xmlns:d3p1="http://schemas.datacontract.org/2004/07/System.Collections.Generic" /&gt; &lt;Message&gt;Unhandled Exception: System.Activities.InvalidWorkflowException: The following errors were encountered while processing the workflow tree: 'DynamicActivity': The private implementation of activity '1: DynamicActivity' has the following validation error: Compiler error(s) encountered processing expression "DirectCast(CustomActivityStep13_1_converted, Microsoft.Xrm.Sdk.EntityReference)".Invalid L-value expression.:Reference expressions cannot end with Conversion. The provided expression's type must exactly match the type T of VisualBasicReference&amp;lt;T&amp;gt; or LambdaReference&amp;lt;T&amp;gt;. at System.Activities.Hosting.WorkflowInstance.ValidateWorkflow(WorkflowInstanceExtensionManager extensionManager) at System.Activities.WorkflowApplication.EnsureInitialized() at System.Activities.WorkflowApplication.Enqueue(InstanceOperation operation, Boolean push) at System.Activities.WorkflowApplication.WaitForTurn(InstanceOperation operation, TimeSpan timeout) at System.Activities.WorkflowApplication.InternalRun(TimeSpan timeout, Boolean isUserRun) at Microsoft.Crm.Workflow.SynchronousRuntime.ActivityHost.StartWorkflowExecution(Activity workflow, ICommonWorkflowContext context) at Microsoft.Crm.Workflow.SynchronousRuntime.ActivityHost.StartWorkflow(ICommonWorkflowContext context) &lt;/Message&gt; &lt;Timestamp&gt;2013-09-25T08:40:17.2376169Z&lt;/Timestamp&gt; &lt;InnerFault i:nil="true" /&gt; &lt;TraceText i:nil="true" /&gt; &lt;/InnerFault&gt; &lt;TraceText i:nil="true" /&gt; &lt;/OrganizationServiceFault&gt; </code></pre> <p>Any ideas about why this is happening? It seems quite regular code to me</p>
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    1. COYou are not assigning anything to out parameter. Following line is commented out in your code: `accountRef.Set(executionContext, new EntityReference("account", accountId));`
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    2. COI commented it cause I thought it was the one giving problems. I removed the comment slashes and the error persists. I have updated the code in the question.
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    3. COHave you tried to debug the code activity to check where its falling?
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