Every time I try to delete this rollup field on my custom entity I get this SQL error.
Unhandled Exception: System.ServiceModel.FaultException`1[[Microsoft.Xrm.Sdk.OrganizationServiceFault, Microsoft.Xrm.Sdk, Version=7.0.0.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35]]: System.Web.HttpUnhandledException: Microsoft Dynamics CRM has experienced an error. Reference number for administrators or support: #D5180B74Detail:
<OrganizationServiceFault xmlns:i="www.w3.org/.../XMLSchema-instance" xmlns="schemas.microsoft.com/.../Contracts">
<ErrorCode>-2147220970</ErrorCode>
<ErrorDetails xmlns:d2p1="schemas.datacontract.org/.../System.Collections.Generic" />
<Message>System.Web.HttpUnhandledException: Microsoft Dynamics CRM has experienced an error. Reference number for administrators or support: #D5180B74</Message>
<Timestamp>2017-04-24T12:31:15.8072634Z</Timestamp>
<InnerFault>
<ErrorCode>-2147220970</ErrorCode>
<ErrorDetails xmlns:d3p1="schemas.datacontract.org/.../System.Collections.Generic" />
<Message>System.Web.Services.Protocols.SoapException: Microsoft Dynamics CRM has experienced an error. Reference number for administrators or support: #257CED76</Message>
<Timestamp>2017-04-24T12:31:15.8072634Z</Timestamp>
<InnerFault>
<ErrorCode>-2147220970</ErrorCode>
<ErrorDetails xmlns:d4p1="schemas.datacontract.org/.../System.Collections.Generic" />
<Message>System.Data.SqlClient.SqlException: Microsoft Dynamics CRM has experienced an error. Reference number for administrators or support: #F81F7521</Message>
<Timestamp>2017-04-24T12:31:15.8072634Z</Timestamp>
<InnerFault i:nil="true" />
<TraceText i:nil="true" />
</InnerFault>
<TraceText i:nil="true" />
</InnerFault>
<TraceText i:nil="true" />
</OrganizationServiceFault>

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