Area Path Error(s)

[rpollick]

I've made good progress, but have encountered this error. Just to note, I am not able to edit any area/iteration paths on the source due to not having access to update them. I am attempting to have the RegEx do the corrections. I've attempted several different variations of the RegEx but keep getting this error.

Current TfsNodeStructure

"TfsNodeStructureTool": {
        "Enabled": true,
        "Areas": {
          "Filters": [],
          "Mappings": [
		  {
                "Match": "^CCLB\\\\(.*?)?(?:\\\\|$)(.*)$",
                "Replacement": "TEST-CCLB-CCHIRP\\\\$1$2"
            },
            {
                "Match": "(\\\\{2,})",
                "Replacement": "\\\\"
            },
		]
        },
        "Iterations": {
          "Filters": [],
          "Mappings": [
			{
                "Match": "^CCLB\\\\(.*)$",
                "Replacement": "TEST-CCLB-CCHIRP\\\\$1"
            },
            {
                "Match": "(\\\\{2,})",
                "Replacement": "\\\\"
            },
          ]
        },
        "ShouldCreateMissingRevisionPaths": true,
        "ReplicateAllExistingNodes": true
      },

Error Log

[13:48:28 INF] [16.2.11-Preview.1]   All fields are either present or mapped.
[13:48:28 INF] [16.2.11-Preview.1] All work item types are valid.
[13:48:29 INF] [16.2.11-Preview.1] Migrating all Nodes before the Processor run.
[13:48:29 INF] [16.2.11-Preview.1]  Processing Node: \TEST-CCLB-CCHIRP\Area\\UAT Team, start date: null, finish date: null
[13:48:30 FTL] [16.2.11-Preview.1] Error while running TfsWorkItemMigrationProcessor
System.InvalidOperationException: Stack empty.
   at System.ThrowHelper.ThrowInvalidOperationException(ExceptionResource resource)
   at System.Collections.Generic.Stack`1.Pop()
   at MigrationTools.Tools.TfsNodeStructureTool.GetOrCreateNode(String nodePath, Nullable`1 startDate, Nullable`1 finishDate) in D:\a\azure-devops-migration-tools\azure-devops-migration-tools\src\MigrationTools.Clients.TfsObjectModel\Tools\TfsNodeStructureTool.cs:line 212
   at MigrationTools.Tools.TfsNodeStructureTool.CreateNodes(XmlNodeList nodeList, String treeType, TfsNodeStructureType nodeStructureType) in D:\a\azure-devops-migration-tools\azure-devops-migration-tools\src\MigrationTools.Clients.TfsObjectModel\Tools\TfsNodeStructureTool.cs:line 358
   at MigrationTools.Tools.TfsNodeStructureTool.ProcessCommonStructure(String treeTypeSource, String localizedTreeTypeName, String projectTarget, TfsNodeStructureType nodeStructureType) in D:\a\azure-devops-migration-tools\azure-devops-migration-tools\src\MigrationTools.Clients.TfsObjectModel\Tools\TfsNodeStructureTool.cs:line 478
   at MigrationTools.Tools.TfsNodeStructureTool.MigrateAllNodeStructures() in D:\a\azure-devops-migration-tools\azure-devops-migration-tools\src\MigrationTools.Clients.TfsObjectModel\Tools\TfsNodeStructureTool.cs:line 408
   at MigrationTools.Tools.TfsNodeStructureTool.ProcessorExecutionBegin(TfsProcessor processor) in D:\a\azure-devops-migration-tools\azure-devops-migration-tools\src\MigrationTools.Clients.TfsObjectModel\Tools\TfsNodeStructureTool.cs:line 279
   at MigrationTools.Processors.TfsWorkItemMigrationProcessor.InternalExecute() in D:\a\azure-devops-migration-tools\azure-devops-migration-tools\src\MigrationTools.Clients.TfsObjectModel\Processors\TfsWorkItemMigrationProcessor.cs:line 126
   at MigrationTools.Processors.Infrastructure.Processor.Execute() in D:\a\azure-devops-migration-tools\azure-devops-migration-tools\src\MigrationTools\Processors\Infrastructure\Processor.cs:line 99
Error logged to Elmah.io!

[MrHinsh]

The error is caused by:

{
                "Match": "(\\\\{2,})",
                "Replacement": "\\\\"
            },

Which is invalid. The Replacment must always contain the target project name.

You also have too many escapes in the replacement. For the match we need to escape for regex and then escape for json. In the replacement we only need to escape for json.

See https://devopsmigration.io/docs/reference/tools/tfs-node-structure-tool/