System.ArgumentException: An item with the same key has already been added.

[megahirt]

jaijairai-flex2

System.ArgumentException: An item with the same key has already been added. Key: my-MM
  at System.Collections.Generic.Dictionary`2[TKey,TValue].TryInsert (TKey key, TValue value, System.Collections.Generic.InsertionBehavior behavior) [0x0015a] in <c5a54dbe91cb4981b725403e1a171987>:0
  at System.Collections.Generic.Dictionary`2[TKey,TValue].Add (TKey key, TValue value) [0x00000] in <c5a54dbe91cb4981b725403e1a171987>:0
  at LfMerge.Core.DataConverters.ConvertLcmToMongoLexicon.LcmWsToLfWs () [0x0009f] in /build/lfmerge-7000072-9dfRZq/lfmerge-7000072-2.0.90.52/src/LfMerge.Core/DataConverters/ConvertLcmToMongoLexicon.cs:617
  at LfMerge.Core.DataConverters.ConvertLcmToMongoLexicon..ctor (LfMerge.Core.ILfProject lfProject, LfMerge.Core.Logging.ILogger logger, LfMerge.Core.MongoConnector.IMongoConnection connection, SIL.Progress.IProgress progress, LfMerge.Core.MongoConnector.MongoProjectRecordFactory projectRecordFactory) [0x00079] in /build/lfmerge-7000072-9dfRZq/lfmerge-7000072-2.0.90.52/src/LfMerge.Core/DataConverters/ConvertLcmToMongoLexicon.cs:65
  at LfMerge.Core.Actions.TransferLcmToMongoAction.DoRun (LfMerge.Core.ILfProject project) [0x00104] in /build/lfmerge-7000072-9dfRZq/lfmerge-7000072-2.0.90.52/src/LfMerge.Core/Actions/TransferLcmToMongoAction.cs:64
  at LfMerge.Core.Actions.Action.Run (LfMerge.Core.ILfProject project) [0x0010d] in /build/lfmerge-7000072-9dfRZq/lfmerge-7000072-2.0.90.52/src/LfMerge.Core/Actions/Action.cs:142
  at LfMerge.Core.Actions.SynchronizeAction.DoRun (LfMerge.Core.ILfProject project) [0x003d4] in /build/lfmerge-7000072-9dfRZq/lfmerge-7000072-2.0.90.52/src/LfMerge.Core/Actions/SynchronizeAction.cs:196
  at LfMerge.Core.Actions.Action.Run (LfMerge.Core.ILfProject project) [0x0010d] in /build/lfmerge-7000072-9dfRZq/lfmerge-7000072-2.0.90.52/src/LfMerge.Core/Actions/Action.cs:142
  at LfMerge.Program.RunAction (System.String projectCode, LfMerge.Core.Actions.ActionNames currentAction) [0x000ed] in /build/lfmerge-7000072-9dfRZq/lfmerge-7000072-2.0.90.52/src/LfMerge/Program.cs:128 

[josephmyers]

This should be either 614 or 616 (in master), depending on whether or not FW8 was being used. So my guess is the ServiceLocator.LanguageProject.AllWritingSystems has two items with either duplicate ID's or LanguageTag's.

[megahirt]

Since this issue occurred a long time ago, we need to re-verify that this is still a problem.

@josephmyers TODO:

• verify that jaijairai-flex2 is still on HOLD
• if still on HOLD, take it off HOLD and re-do the S/R.
• If the error persists, then debug it.