System.IndexOutOfRangeException when cretaing links with CreateFromGit #3069
Description
Discussed in #3068
Originally posted by ptc-96 November 21, 2025
Hello,
I am performing a migration and I have encountered an error while migrating git links.
{"Timestamp":"2025-11-20T13:14:26.7544653+01:00","Level":"Error","MessageTemplate":"Sy**stem.IndexOutOfRangeException: Index was outside the bounds of the array.** \r\n
at MigrationTools.Tools.TfsGitRepositoryInfo.CreateFromGit(ExternalLink gitExternalLink, IList 1 possibleRepos) in D:\\a\\azure-devops-migration-tools\\azure-devops-migration-tools\\src\\MigrationTools.Clients.TfsObjectModel\\Tools\\TfsGitRepositoryInfo.cs:line 97\r\n
at MigrationTools.Tools.TfsGitRepositoryInfo.Create(ExternalLink gitExternalLink, IList 1 possibleRepos, TfsChangeSetMappingTool tfsChangeSetMappingTool, String workItemSourceProjectName) in D:\\a\\azure-devops-migration-tools\\azure-devops-migration-tools\\src\\MigrationTools.Clients.TfsObjectModel\\Tools\\TfsGitRepositoryInfo.cs:line 31\r\n
at MigrationTools.Tools.TfsGitRepositoryTool.Enrich(TfsProcessor processor, WorkItemData sourceWorkItem, WorkItemData targetWorkItem) in D:\\a\\azure-devops-migration-tools\\azure-devops-migration-tools\\src\\MigrationTools.Clients.TfsObjectModel\\Tools\\TfsGitRepositoryTool.cs:line 109\r\n
at MigrationTools.Processors.TfsWorkItemMigrationProcessor.ProcessWorkItemLinks(WorkItemData sourceWorkItem, WorkItemData targetWorkItem) in D:\\a\\azure-devops-migration-tools\\azure-devops-migration-tools\\src\\MigrationTools.Clients.TfsObjectModel\\Processors\\TfsWorkItemMigrationProcessor.cs:line 686\r\n
at MigrationTools.Processors.TfsWorkItemMigrationProcessor.<ProcessWorkItemAsync>d__31.MoveNext() in D:\\a\\azure-devops-migration-tools\\azure-devops-migration-tools\\src\\MigrationTools.Clients.TfsObjectModel\\Processors\\TfsWorkItemMigrationProcessor.cs:line 581",
I've checked that some of the LinkedArtifactUri values of the Git links are not in the expected legacy format:
vstfs:///Git/Commit/_repoId_**%2f**_commitId_
but instead use the newer Azure DevOps format:
vstfs:///Git/Commit/_projectName_/_repoName_/_commitId_
This causes the tool to fail when trying to parse and construct the Git link.
<img width="1502" height="223" alt="image" src="https://github.com/user-attachments/assets/07489056-8b5b-43d2-b005-703ae0204580" />
Suggestion:
If supporting the new URI formats is not possible at this time, would it be feasible to at least catch this exception so the migration process does not stop entirely?
Thanks!