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Dynamics 365 Community / Forums / Microsoft Dynamics CRM (Archived) / Unable to cast object ...
Microsoft Dynamics CRM (Archived)

Unable to cast object of type 'System.Guid' to type 'Microsoft.Xrm.Sdk.EntityReference'

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Posted on by Community Member Microsoft Employee

I have the following  code

OrganizationServiceProxy serviceProxy = GetOrganizationService();
Entity lead = new Entity("lead");
EntityReference accountLookup = new EntityReference
{
Id = accountId,
LogicalName = "account"
};
EntityReference ownerLookup = new EntityReference
{
Id = aePrimary,
LogicalName = "systemuser"
};
//lead.Attributes["parentaccountid"] = accountLookup;
lead.Attributes["ds_aeprimary"] = aePrimary;
lead.Attributes["ownerid"] = ownerLookup;
lead.Attributes.Add("ds_projecttype", new OptionSetValue(projectType));

  Guid response = serviceProxy.Create(lead);

I am getting the Unable to cast object of type 'System.Guid' to type 'Microsoft.Xrm.Sdk.EntityReference' after upgrading sdk from 6 to 8. I went through article in this community and on google but nothing helped. Please help Thanks!

*This post is locked for comments

  • Michel van den Brink Profile Picture
    Michel van den Brink 4,697 on at
    RE: Unable to cast object of type 'System.Guid' to type 'Microsoft.Xrm.Sdk.EntityReference'

    Any time, here to help! :-)

  • Suggested answer
    Community Member Profile Picture
    Community Member Microsoft Employee on at
    RE: Unable to cast object of type 'System.Guid' to type 'Microsoft.Xrm.Sdk.EntityReference'

    Yes That is the problem. Thanks!

  • Community Member Profile Picture
    Community Member Microsoft Employee on at
    RE: Unable to cast object of type 'System.Guid' to type 'Microsoft.Xrm.Sdk.EntityReference'

    Yes it is. That's the problem. Thanks!

  • Verified answer
    Aric Levin Profile Picture
    Aric Levin 30,188 on at
    RE: Unable to cast object of type 'System.Guid' to type 'Microsoft.Xrm.Sdk.EntityReference'

    Hi Jack,

    A few questions:

    What data type is ds_aeprimary? Not in your code?

    Seems like the issue is there as you are trying to put it in the owner lookup.

    Should that be an entityreference as well instead of a Guid?

  • Verified answer
    Michel van den Brink Profile Picture
    Michel van den Brink 4,697 on at
    RE: Unable to cast object of type 'System.Guid' to type 'Microsoft.Xrm.Sdk.EntityReference'

    Hello,

    What type is your field 'ds_aeprimary'?

    That's the only field I can see where your code is trying to write a GUID.

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