Migrating from one org to another with identical structure, getting "Area not anchored in target" error

[Etio-Kris]

I've been tasked with moving all work items from one DevOps organisation to another. I've set up the target to be identical to the source in terms of areas (haven't got on to iteration paths yet, I'd like to skip that if it's possible?).
From what I can tell from the documentation, I don't need to set up any field maps as its 1:1 relationship but the app doesn't seem to be picking up any areas so suspect I may be wrong on that front.
If I do need a field mapping setup, I can't tell which kind I want for this direct migration with no actual mapping

My error is:

Path \Benchmarking\Area is not anchored in the target project, it cannot be created.

Error in output:
[14:11:25 INF] [v15.0.4] Validating::Check that all Area & Iteration paths from Source have a valid mapping on Target
[14:11:25 DBG] [v15.0.4] TfsNodeStructure:CheckForMissingPaths
[14:11:25 DBG] [v15.0.4] TfsNodeStructure:CheckForMissingPaths::AreaNodes::6
[14:11:25 DBG] [v15.0.4] TfsNodeStructure:CheckForMissingPaths:Checking::null
[14:11:25 DBG] [v15.0.4] NodeStructureEnricher.GetNewNodeName(Benchmarking, Area)
[14:11:25 DBG] [v15.0.4] NodeStructureEnricher.GetNewNodeName::Mappers
[14:11:25 DBG] [v15.0.4] TfsNodeStructure:CheckForMissingPaths:CheckTarget::\Benchmarking\Area
[14:11:25 DBG] [v15.0.4] TfsNodeStructure:CheckForMissingPaths:CheckTarget::NOTFOUND:\Benchmarking\Area
[14:11:25 DBG] [v15.0.4] TfsNodeStructure:GetOrCreateNode(\Benchmarking\Area, null, null)
[14:11:25 INF] [v15.0.4] Processing Node: \Benchmarking\Area, start date: null, finish date: null
[14:11:25 DBG] [v15.0.4] Not Found:
[14:11:25 DBG] [v15.0.4] Not Found:
[14:11:25 INF] [v15.0.4] DONE in 00:00:14.2571617
[14:11:25 FTL] [v15.0.4] Error while running WorkItemMigration
System.InvalidOperationException: Path \Benchmarking\Area is not anchored in the target project, it cannot be created.
at MigrationTools.Enrichers.TfsNodeStructure.GetOrCreateNode(String nodePath, Nullable1 startDate, Nullable1 finishDate) in D:\a\1\s\src\MigrationTools.Clients.AzureDevops.ObjectModel\ProcessorEnrichers\TfsNodeStructure.cs:line 198
at MigrationTools.Enrichers.TfsNodeStructure.CheckForMissingPaths(List1 workItems, TfsNodeStructureType nodeType) in D:\a\1\s\src\MigrationTools.Clients.AzureDevops.ObjectModel\ProcessorEnrichers\TfsNodeStructure.cs:line 596 at MigrationTools.Enrichers.TfsNodeStructure.GetMissingRevisionNodes(List1 workItems) in D:\a\1\s\src\MigrationTools.Clients.AzureDevops.ObjectModel\ProcessorEnrichers\TfsNodeStructure.cs:line 637
at VstsSyncMigrator.Engine.WorkItemMigrationContext.ValidateAllNodesExistOrAreMapped(List`1 sourceWorkItems) in D:\a\1\s\src\VstsSyncMigrator.Core\Execution\MigrationContext\WorkItemMigrationContext.cs:line 297
at VstsSyncMigrator.Engine.WorkItemMigrationContext.InternalExecute() in D:\a\1\s\src\VstsSyncMigrator.Core\Execution\MigrationContext\WorkItemMigrationContext.cs:line 186
at MigrationTools._EngineV1.Processors.MigrationProcessorBase.Execute() in D:\a\1\s\src\MigrationTools_EngineV1\Processors\MigrationProcessorBase.cs:line 50
[14:11:25 ERR] [v15.0.4] WorkItemMigration The Processor MigrationEngine entered the failed state...stopping run

Config is:
{
"ChangeSetMappingFile": null,
"Source": {
"$type": "TfsTeamProjectConfig",
"Collection": "https://dev.azure.com/oldOrg/",
"Project": "Benchmarking",
"ReflectedWorkItemIDFieldName": "Custom.ReflectedWorkItemId",
"AllowCrossProjectLinking": false,
"AuthenticationMode": "AccessToken",
"PersonalAccessToken": "###",
"PersonalAccessTokenVariableName": "",
"LanguageMaps": {
"AreaPath": "Area",
"IterationPath": "Iteration"
},
"CollectionName": "https://dev.azure.com/oldOrg/"
},
"Target": {
"$type": "TfsTeamProjectConfig",
"Collection": "https://dev.azure.com/newOrg/",
"Project": "Benchmarking",
"ReflectedWorkItemIDFieldName": "Custom.ReflectedWorkItemId",
"AllowCrossProjectLinking": false,
"AuthenticationMode": "AccessToken",
"PersonalAccessToken": "###",
"PersonalAccessTokenVariableName": "",
"LanguageMaps": {
"AreaPath": "Area",
"IterationPath": "Iteration"
},
"CollectionName": "https://dev.azure.com/newOrg/"
},
"FieldMaps": [],
"GitRepoMapping": {},
"LogLevel": "Verbose",
"CommonEnrichersConfig": [],
"Processors": [
{
"$type": "WorkItemMigrationConfig",
"Enabled": true,
"UpdateCreatedDate": true,
"UpdateCreatedBy": true,
"WIQLQuery": "SELECT [System.Id] FROM WorkItems WHERE [System.TeamProject] = @teamproject AND [System.WorkItemType] IN ('User Story') AND [System.CreatedDate] < '01/01/2018' ORDER BY [System.ChangedDate] desc",
"FixHtmlAttachmentLinks": false,
"WorkItemCreateRetryLimit": 5,
"FilterWorkItemsThatAlreadyExistInTarget": false,
"PauseAfterEachWorkItem": false,
"AttachRevisionHistory": false,
"GenerateMigrationComment": true,
"WorkItemIDs": null,
"MaxGracefulFailures": 0,
"SkipRevisionWithInvalidIterationPath": false,
"SkipRevisionWithInvalidAreaPath": false
}
],
"Version": "15.0",
"workaroundForQuerySOAPBugEnabled": false,
"WorkItemTypeDefinition": {
"sourceWorkItemTypeName": "targetWorkItemTypeName"
},
"Endpoints": {
"InMemoryWorkItemEndpoints": [
{
"Name": "Source",
"EndpointEnrichers": null
},
{
"Name": "Target",
"EndpointEnrichers": null
}
]
}
}

[MrHinsh]

Can you try again with the latest version?

We have had ~45 releases with fixes since v15.0.4!