Inport error Key can not be 0

[Gert_Coetzer]

Sonarr version (exact version): 2.0.0.5252
Mono version (if Sonarr is not running on Windows):
OS: Synology
Debug logs: System.ArgumentNullException: Value cannot be null. Parameter name: key at System.Collections.Generic.Dictionary2[TKey,TValue].FindEntry (TKey key) [0x00008] in <cb410c64c7fa4e8d9841a0cbe4173d66>:0 at System.Collections.Generic.Dictionary2[TKey,TValue].get_Item (TKey key) [0x00000] in <cb410c64c7fa4e8d9841a0cbe4173d66>:0 at NzbDrone.Core.Qualities.QualityDefinitionService.Get (NzbDrone.Core.Qualities.Quality quality) [0x00006] in <85e2f5295c104ca3a3bcaa59e805585a>:0 at NzbDrone.Core.Organizer.FileNameBuilder.AddQualityTokens (System.Collections.Generic.Dictionary2[TKey,TValue] tokenHandlers, NzbDrone.Core.Tv.Series series, NzbDrone.Core.MediaFiles.EpisodeFile episodeFile) [0x00018] in <85e2f5295c104ca3a3bcaa59e805585a>:0 at NzbDrone.Core.Organizer.FileNameBuilder.BuildFileName (System.Collections.Generic.List1[T] episodes, NzbDrone.Core.Tv.Series series, NzbDrone.Core.MediaFiles.EpisodeFile episodeFile, NzbDrone.Core.Organizer.NamingConfig namingConfig) [0x00164] in <85e2f5295c104ca3a3bcaa59e805585a>:0 at NzbDrone.Core.MediaFiles.EpisodeFileMovingService.MoveEpisodeFile (NzbDrone.Core.MediaFiles.EpisodeFile episodeFile, NzbDrone.Core.Parser.Model.LocalEpisode localEpisode) [0x00012] in <85e2f5295c104ca3a3bcaa59e805585a>:0 at NzbDrone.Core.MediaFiles.UpgradeMediaFileService.UpgradeEpisodeFile (NzbDrone.Core.MediaFiles.EpisodeFile episodeFile, NzbDrone.Core.Parser.Model.LocalEpisode localEpisode, System.Boolean copyOnly) [0x0017c] in <85e2f5295c104ca3a3bcaa59e805585a>:0 at NzbDrone.Core.MediaFiles.EpisodeImport.ImportApprovedEpisodes.Import (System.Collections.Generic.List`1[T] decisions, System.Boolean newDownload, NzbDrone.Core.Download.DownloadClientItem downloadClientItem, NzbDrone.Core.MediaFiles.EpisodeImport.ImportMode importMode) [0x00272] in <85e2f5295c104ca3a3bcaa59e805585a>:0

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Description of issue: Sonarr will not automatic import and will not manual import. I dont realy understand the problem as it still import other single files.

[rhom]

how did you create the series in sonarr? manually or some other way?

check the series has a quality profile assigned to it (and its valid)

maybe also check the quality definitions to see if they all have names (not empty)

[Gert_Coetzer]

Manual created and the quality is set to any. all the other shows works fine and has no problem this one is just season 5 that has this problem