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Error when browsing to repository. Also can't push without 500 error.

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Carl Berg

11 Jun, 2015 07:30 AM

System.NullReferenceException: Object reference not set to an instance of an object.
   at HgSharp.Core.HgTagManager.RefreshTagsInternal(HgRevset headNodes) in d:\projects\hgsharp\src\HgSharp.Core\HgTagManager.cs:line 147
   at HgSharp.Core.HgTagManager.GetTagsInternal() in d:\projects\hgsharp\src\HgSharp.Core\HgTagManager.cs:line 86
   at HgSharp.Core.HgTagManager.GetTags() in d:\projects\hgsharp\src\HgSharp.Core\HgTagManager.cs:line 41
   at HgSharp.Core.HgRepository.GetTags() in d:\projects\hgsharp\src\HgSharp.Core\HgRepository.cs:line 723
   at HgLab.Models.Modellers.RepositoryModeller.ToRepositoryModel(ISecurityPrincipal securityPrincipal, Repository repository, ProjectModel projectModel, HgRepository hgRepository, Boolean includeClosedBranches, Action`1 t) in d:\projects\hglab\src\HgLab\Models\Modellers\RepositoryModeller.cs:line 75
   at HgLab.Areas.Project.Controllers.RepositoryController.Files(MainlineRepository repository, String changeset, String path) in d:\projects\hglab\src\HgLab\Areas\Project\Controllers\RepositoryController.cs:line 106
   at lambda_method(Closure , ControllerBase , Object[] )
   at System.Web.Mvc.ActionMethodDispatcher.Execute(ControllerBase controller, Object[] parameters)
   at System.Web.Mvc.ReflectedActionDescriptor.Execute(ControllerContext controllerContext, IDictionary`2 param

1. 1 Posted by Carl Berg on 11 Jun, 2015 07:48 AM

   

   Here's an attached logfile from hgLab

   • hgsharp-2015-06-11.log 37.1 KB
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2. Support Staff 2 Posted by Anton Gogolev on 11 Jun, 2015 09:13 AM

   

   Hello, Carl!

   This is most likely due to caches being out of sync. Try deleting
   everything under ".hg\cache" in from the failing repository on your HgLab
   server.

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3. 3 Posted by Carl Berg on 11 Jun, 2015 10:05 AM

   

   No luck unfortunately... Same error after deleting everything under cache. I have also upgraded to version 1.8.7, but no change. Same error appears in UI and this is what appears in the log:
   

   12:01:53.1023 - Error -       cber - HgSharp.Server.HgHttpServer - exceptionSystem.NullReferenceException: Object reference not set to an instance of an object.
      at HgSharp.Core.HgRevlogWriter.WriteRevlogEntries(IEnumerable1 chunks, Func2 linkRevisionProviderCallback, Action1 duplicateEntryHandlerCallback) in d:\projects\hgsharp\src\HgSharp.Core\HgRevlogWriter.cs:line 295
      at HgSharp.Core.HgRepository.Commit(IDictionary2 revisions, IEnumerable1 chunks, HgRevlog hgRevlog, Int32& changes) in d:\projects\hgsharp\src\HgSharp.Core\HgRepository.cs:line 649
      at HgSharp.Core.HgRepository.Commit(HgBundle hgBundle) in d:\projects\hgsharp\src\HgSharp.Core\HgRepository.cs:line 625
      at HgSharp.Server.HgHttpServer.ExecuteUnbundle(HgHttpCommandContext context) in d:\projects\hgsharp\src\HgSharp.Server\HgHttpServer.cs:line 348
      at HgSharp.Server.HgHttpServer.<>c__DisplayClassf.<TextCommand>b__e(HgHttpCommandContext httpContext) in d:\projects\hgsharp\src\HgSharp.Server\HgHttpServer.cs:line 228
      at HgSharp.Server.HgHttpServer.<>c__DisplayClass5.<WriteCommand>b__4(HgHttpCommandContext httpContext) in d:\projects\hgsharp\src\HgSharp.Server\HgHttpServer.cs:line 118
      at HgSharp.Server.HgHttpServer.<>c__DisplayClassb.<ExceptionHandler>b__a(HgHttpCommandContext httpContext) in d:\projects\hgsharp\src\HgSharp.Server\HgHttpServer.cs:line 152    at HgSharp.Core.HgRevlogWriter.WriteRevlogEntries(IEnumerable1 chunks, Func2 linkRevisionProviderCallback, Action1 duplicateEntryHandlerCallback) in d:\projects\hgsharp\src\HgSharp.Core\HgRevlogWriter.cs:line 295
      at HgSharp.Core.HgRepository.Commit(IDictionary2 revisions, IEnumerable1 chunks, HgRevlog hgRevlog, Int32& changes) in d:\projects\hgsharp\src\HgSharp.Core\HgRepository.cs:line 649
      at HgSharp.Core.HgRepository.Commit(HgBundle hgBundle) in d:\projects\hgsharp\src\HgSharp.Core\HgRepository.cs:line 625
      at HgSharp.Server.HgHttpServer.ExecuteUnbundle(HgHttpCommandContext context) in d:\projects\hgsharp\src\HgSharp.Server\HgHttpServer.cs:line 348
      at HgSharp.Server.HgHttpServer.<>c__DisplayClassf.<TextCommand>b__e(HgHttpCommandContext httpContext) in d:\projects\hgsharp\src\HgSharp.Server\HgHttpServer.cs:line 228
      at HgSharp.Server.HgHttpServer.<>c__DisplayClass5.<WriteCommand>b__4(HgHttpCommandContext httpContext) in d:\projects\hgsharp\src\HgSharp.Server\HgHttpServer.cs:line 118
      at HgSharp.Server.HgHttpServer.<>c__DisplayClassb.<ExceptionHandler>b__a(HgHttpCommandContext httpContext) in d:\projects\hgsharp\src\HgSharp.Server\HgHttpServer.cs:line 152
   

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4. Support Staff 4 Posted by Anton Gogolev on 11 Jun, 2015 11:16 AM

   

   Carl,

   Can you possibly copy the entire repository from the server to your local
   machine and run "hg verify" on it?

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5. 5 Posted by Carl Berg on 11 Jun, 2015 11:33 AM

   

   You're right. It's been corrupted. I will try to clone it from the last working revision and replace it with the cloned one. I guess i have to remove any newer changesets (in PushlogEntry and PushlogEntryItem) in the hglabs database aswell?

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6. Support Staff 6 Posted by Anton Gogolev on 11 Jun, 2015 01:11 PM

   

   Sorry to hear that.

   If the repository you'll be overwriting the one on the server has any of
   the previous changesets missing, you'll need to clean up the tables you've
   referenced. Otherwise (if you are overwriting with a non-corrupt version of
   the same exact repository with the same exact changesets) you can leave
   things as is.

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7. 7 Posted by Carl Berg on 11 Jun, 2015 01:19 PM

   

   I ended up moving my own repository over to the server. Seems to be ok now. Thanks for the help!

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