FieldDefinitionNotExistException for System.ClosedDate

[Tuba-guy]

I am getting the following error:
[07:11:52 ERR] [v14.4.4] Microsoft.TeamFoundation.WorkItemTracking.Client.FieldDefinitionNotExistException: TF26027: A field definition System.ClosedDate in the work item type definition file does not exist. Add a definition for this field or remove the reference to the field and try again.

In both DevOps versions, source and target, the ClosedDate field's full name is Microsoft.VSTS.Common.ClosedDate.

I have tried:
{
"$type": "FieldtoFieldMapConfig",
"WorkItemTypeName": "*",
"sourceField": "System.ClosedDate",
"targetField": "Microsoft.VSTS.Common.ClosedDate",
"defaultValue": null
},

and
{
"$type": "FieldSkipMapConfig",
"WorkItemTypeName": "*",
"targetField":"System.ClosedDate"
},

I'm still getting this error. Can anyone guide me on this?

Here is my config in case this helps:

`Update: Here is my config file in case that is also useful
{
"ChangeSetMappingFile": null,
"Source": {
"$type": "TfsTeamProjectConfig",
"Collection": "https://dev.azure.com/sierrasystems-dev/",
"Project": "NICEMS",
"ReflectedWorkItemIDFieldName": "Custom.ReflectedWorkItemId",
"AllowCrossProjectLinking": false,
"AuthenticationMode": "AccessToken",
"PersonalAccessToken": "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx",
"PersonalAccessTokenVariableName": "",
"LanguageMaps": {
"AreaPath": "Area",
"IterationPath": "Iteration"
}
},
"Target": {
"$type": "TfsTeamProjectConfig",
"Collection": "https://dev.azure.com/ntt-data-dev/",
"Project": "NICEMS",
"ReflectedWorkItemIDFieldName": "Custom.ReflectedWorkItemId",
"AllowCrossProjectLinking": false,
"AuthenticationMode": "AccessToken",
"PersonalAccessToken": "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx",
"PersonalAccessTokenVariableName": "",
"LanguageMaps": {
"AreaPath": "Area",
"IterationPath": "Iteration"
}
},
"FieldMaps": [
{
"$type": "MultiValueConditionalMapConfig",
"WorkItemTypeName": "",
"sourceFieldsAndValues": {
"Field1": "Value1",
"Field2": "Value2"
},
"targetFieldsAndValues": {
"Field1": "Value1",
"Field2": "Value2"
}
},
{
"$type": "FieldSkipMapConfig",
"WorkItemTypeName": "",
"targetField": "TfsMigrationTool.ReflectedWorkItemId"
},
{
"$type": "FieldSkipMapConfig",
"WorkItemTypeName": "",
"targetField":"System.ClosedDate"
},
{
"$type": "FieldValueMapConfig",
"WorkItemTypeName": "",
"sourceField": "System.State",
"targetField": "System.State",
"defaultValue": "New",
"valueMapping": {
"Approved": "Approved",
"New": "New",
"Committed": "Committed",
"In Progress": "New",
"To Do": "New",
"Done": "Done",
"Removed": "Removed",
"On Hold": "On Hold",
"Investigate":"Investigate",
"Ready for Review":"Ready for Review",
"Ready to Test":"Ready to Test",
"Ready for QA":"Ready for QA",
}
},
{
"$type": "FieldtoFieldMapConfig",
"WorkItemTypeName": "",
"sourceField": "Microsoft.VSTS.Common.BacklogPriority",
"targetField": "Microsoft.VSTS.Common.StackRank",
"defaultValue": null
},
{
"$type": "FieldtoFieldMapConfig",
"WorkItemTypeName": "",
"sourceField": "System.ClosedDate",
"targetField": "Microsoft.VSTS.Common.ClosedDate",
"defaultValue": null
},
{
"$type": "FieldtoTagMapConfig",
"WorkItemTypeName": "",
"sourceField": "System.State",
"formatExpression": "ScrumState:{0}"
},
{
"$type": "FieldMergeMapConfig",
"WorkItemTypeName": "",
"sourceFields": [
"System.Description",
"Microsoft.VSTS.Common.AcceptanceCriteria"
],
"targetField": "System.Description",
"formatExpression": "{0}

Acceptance Criteria
{1}"
},
{
"$type": "RegexFieldMapConfig",
"WorkItemTypeName": "",
"sourceField": "COMPANY.PRODUCT.Release",
"targetField": "COMPANY.DEVISION.MinorReleaseVersion",
"pattern": "PRODUCT \d{4}.(\d{1})",
"replacement": "$1"
},
{
"$type": "FieldValuetoTagMapConfig",
"WorkItemTypeName": "",
"sourceField": "Microsoft.VSTS.CMMI.Blocked",
"pattern": "Yes",
"formatExpression": "{0}"
},
{
"$type": "TreeToTagMapConfig",
"WorkItemTypeName": "*",
"toSkip": 3,
"timeTravel": 1
}
],
"GitRepoMapping": null,
"LogLevel": "Debug",
"CommonEnrichersConfig": null,
"Processors": [
{
"$type": "WorkItemMigrationConfig",
"Enabled": true,
"ReplayRevisions": true,
"PrefixProjectToNodes": false,
"UpdateCreatedDate": true,
"UpdateCreatedBy": true,
"WIQLQueryBit": "AND [System.WorkItemType] IN ('Requirement') AND [System.ChangedDate] > '2024-01-15'",
"WIQLOrderBit": "[System.ChangedDate] desc" ,
"LinkMigration": true,
"AttachmentMigration": true,
"AttachmentWorkingPath": "c:\temp\WorkItemAttachmentWorkingFolder",
"FixHtmlAttachmentLinks": false,
"SkipToFinalRevisedWorkItemType": true,
"WorkItemCreateRetryLimit": 5,
"FilterWorkItemsThatAlreadyExistInTarget": true,
"PauseAfterEachWorkItem": false,
"AttachmentMaxSize": 480000000,
"AttachRevisionHistory": false,
"LinkMigrationSaveEachAsAdded": false,
"GenerateMigrationComment": true,
"WorkItemIDs": null,
"MaxRevisions": 0,
"UseCommonNodeStructureEnricherConfig": false,
"StopMigrationOnMissingAreaIterationNodes": false,
"NodeBasePaths": [],
"AreaMaps": {},
"IterationMaps": {},
"MaxGracefulFailures": 0,
"SkipRevisionWithInvalidIterationPath": false,
"SkipRevisionWithInvalidAreaPath": false,
"ShouldCreateMissingRevisionPaths": true
}
],
"Version": "14.4",
"workaroundForQuerySOAPBugEnabled": false,
"WorkItemTypeDefinition": {
"sourceWorkItemTypeName": "targetWorkItemTypeName"
},
"Endpoints": {
"InMemoryWorkItemEndpoints": [
{
"Name": "Source",
"EndpointEnrichers": null
},
{
"Name": "Target",
"EndpointEnrichers": null
}
]
}
}`

[Tuba-guy]

Resolved this issue by editing source code and complining my own version. I've never made a PR before and I don't know how to proceed. I will try and submit a PR for this when I can.