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    Jellyfin Forum Support Troubleshooting SOLVED: Can't start Jellyfin

     
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    SOLVED: Can't start Jellyfin

    ACTransitBusFightIAAMF
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    Junior Member

    Posts: 6
    Threads: 2
    Joined: 2025 May
    Reputation: 0
    Country:United Kingdom
    #1
    2025-05-01, 07:35 PM
    I've downloaded Jellyfin onto a Windows machine.

    I installed it, I start it, a load of text flashes up and speeds by, then nothing happens.

    I've gone into the folder and clicked the Jellyfin thing again, same thing happens.  Tried running as Administrator, same thing happens.

    I'm able to start up the Jellyfin Windows Tray app, but when I double click it I get a "This site can't be reached" error.  

    Quote:localhost refused to connect.
    Try:

    Checking the connection
    Checking the proxy and the firewall
    ERR_CONNECTION_REFUSED

    I did have a previous installation of Plex, I've uninstalled that now and it hasn't done any good.  

    I fully uninstalled Jellyfin (i.e. deleted all data) and reinstalled it, same problems.

    I don't think it's an issue with the cache of my browser or anything like that, since I've opened it in incognito tabs and browsers I've never used Plex with and had the same issue.

    This is the log I get

    Quote:[2025-05-01 20:31:07.330 +01:00] [INF] [8] Main: Jellyfin version: "10.10.7"
    [2025-05-01 20:31:07.362 +01:00] [INF] [8] Main: Environment Variables: ["[JELLYFIN_LOG_DIR, C:\ProgramData\Jellyfin\Server\log]"]
    [2025-05-01 20:31:07.366 +01:00] [INF] [8] Main: Arguments: ["C:\Program Files\Jellyfin\Server\jellyfin.dll", "--datadir", "C:\ProgramData\Jellyfin\Server"]
    [2025-05-01 20:31:07.368 +01:00] [INF] [8] Main: Operating system: "Microsoft Windows 10.0.26100"
    [2025-05-01 20:31:07.369 +01:00] [INF] [8] Main: Architecture: X64
    [2025-05-01 20:31:07.370 +01:00] [INF] [8] Main: 64-Bit Process: True
    [2025-05-01 20:31:07.371 +01:00] [INF] [8] Main: User Interactive: True
    [2025-05-01 20:31:07.372 +01:00] [INF] [8] Main: Processor count: 12
    [2025-05-01 20:31:07.372 +01:00] [INF] [8] Main: Program data path: "C:\ProgramData\Jellyfin\Server"
    [2025-05-01 20:31:07.373 +01:00] [INF] [8] Main: Log directory path: "C:\ProgramData\Jellyfin\Server\log"
    [2025-05-01 20:31:07.375 +01:00] [INF] [8] Main: Config directory path: "C:\ProgramData\Jellyfin\Server\config"
    [2025-05-01 20:31:07.376 +01:00] [INF] [8] Main: Cache path: "C:\ProgramData\Jellyfin\Server\cache"
    [2025-05-01 20:31:07.378 +01:00] [INF] [8] Main: Temp directory path: "C:\Users\kcher\AppData\Local\Temp\jellyfin"
    [2025-05-01 20:31:07.379 +01:00] [INF] [8] Main: Web resources path: "C:\Program Files\Jellyfin\Server\jellyfin-web"
    [2025-05-01 20:31:07.379 +01:00] [INF] [8] Main: Application directory: "C:\Program Files\Jellyfin\Server\"
    [2025-05-01 20:31:08.259 +01:00] [INF] [8] Jellyfin.Server.Migrations.MigrationRunner: Marking following migrations as applied because this is a fresh install: ["CreateNetworkConfiguration", "MigrateMusicBrainzTimeout", "MigrateNetworkConfiguration", "MigrateEncodingOptions"]
    [2025-05-01 20:31:08.539 +01:00] [INF] [8] Emby.Server.Implementations.AppBase.BaseConfigurationManager: Setting cache path: "C:\ProgramData\Jellyfin\Server\cache"
    [2025-05-01 20:31:09.095 +01:00] [INF] [8] Emby.Server.Implementations.ApplicationHost: Loading assemblies
    [2025-05-01 20:31:10.790 +01:00] [INF] [8] Jellyfin.Networking.Manager.NetworkManager: Defined LAN subnets: ["127.0.0.1/8", "10.0.0.0/8", "172.16.0.0/12", "192.168.0.0/16"]
    [2025-05-01 20:31:10.793 +01:00] [INF] [8] Jellyfin.Networking.Manager.NetworkManager: Defined LAN exclusions: []
    [2025-05-01 20:31:10.794 +01:00] [INF] [8] Jellyfin.Networking.Manager.NetworkManager: Used LAN subnets: ["127.0.0.1/8", "10.0.0.0/8", "172.16.0.0/12", "192.168.0.0/16"]
    [2025-05-01 20:31:10.796 +01:00] [INF] [8] Jellyfin.Networking.Manager.NetworkManager: Filtered interface addresses: ["10.5.0.2", "192.168.0.41", "127.0.0.1"]
    [2025-05-01 20:31:10.798 +01:00] [INF] [8] Jellyfin.Networking.Manager.NetworkManager: Bind Addresses ["0.0.0.0"]
    [2025-05-01 20:31:10.799 +01:00] [INF] [8] Jellyfin.Networking.Manager.NetworkManager: Remote IP filter is "Allowlist"
    [2025-05-01 20:31:10.800 +01:00] [INF] [8] Jellyfin.Networking.Manager.NetworkManager: Filtered subnets: []
    [2025-05-01 20:31:13.539 +01:00] [INF] [8] Emby.Server.Implementations.ApplicationHost: There are pending EFCore migrations in the database. Applying... (This may take a while, do not stop Jellyfin)
    [2025-05-01 20:31:13.858 +01:00] [WRN] [8] Microsoft.EntityFrameworkCore.Migrations: An operation of type '"SqlOperation"' will be attempted while a rebuild of table '"ImageInfos"' is pending. The database may not be in an expected state. Review the SQL generated by this migration to help diagnose any failures. Consider moving these operations to a subsequent migration.
    [2025-05-01 20:31:13.860 +01:00] [WRN] [8] Microsoft.EntityFrameworkCore.Migrations: An operation of type '"SqlOperation"' will be attempted while a rebuild of table '"ImageInfos"' is pending. The database may not be in an expected state. Review the SQL generated by this migration to help diagnose any failures. Consider moving these operations to a subsequent migration.
    [2025-05-01 20:31:13.863 +01:00] [WRN] [8] Microsoft.EntityFrameworkCore.Migrations: An operation of type '"SqlOperation"' will be attempted while a rebuild of table '"Permissions"' is pending. The database may not be in an expected state. Review the SQL generated by this migration to help diagnose any failures. Consider moving these operations to a subsequent migration.
    [2025-05-01 20:31:13.865 +01:00] [WRN] [8] Microsoft.EntityFrameworkCore.Migrations: An operation of type '"SqlOperation"' will be attempted while a rebuild of table '"Permissions"' is pending. The database may not be in an expected state. Review the SQL generated by this migration to help diagnose any failures. Consider moving these operations to a subsequent migration.
    [2025-05-01 20:31:13.867 +01:00] [WRN] [8] Microsoft.EntityFrameworkCore.Migrations: An operation of type '"SqlOperation"' will be attempted while a rebuild of table '"Preferences"' is pending. The database may not be in an expected state. Review the SQL generated by this migration to help diagnose any failures. Consider moving these operations to a subsequent migration.
    [2025-05-01 20:31:13.868 +01:00] [WRN] [8] Microsoft.EntityFrameworkCore.Migrations: An operation of type '"SqlOperation"' will be attempted while a rebuild of table '"Preferences"' is pending. The database may not be in an expected state. Review the SQL generated by this migration to help diagnose any failures. Consider moving these operations to a subsequent migration.
    [2025-05-01 20:31:13.870 +01:00] [WRN] [8] Microsoft.EntityFrameworkCore.Migrations: An operation of type '"SqlOperation"' will be attempted while a rebuild of table '"Users"' is pending. The database may not be in an expected state. Review the SQL generated by this migration to help diagnose any failures. Consider moving these operations to a subsequent migration.
    [2025-05-01 20:31:13.872 +01:00] [WRN] [8] Microsoft.EntityFrameworkCore.Migrations: An operation of type '"SqlOperation"' will be attempted while a rebuild of table '"Users"' is pending. The database may not be in an expected state. Review the SQL generated by this migration to help diagnose any failures. Consider moving these operations to a subsequent migration.
    [2025-05-01 20:31:14.067 +01:00] [INF] [8] Emby.Server.Implementations.ApplicationHost: EFCore migrations applied successfully
    [2025-05-01 20:31:15.520 +01:00] [INF] [8] Emby.Server.Implementations.AppBase.BaseConfigurationManager: Saving system configuration
    [2025-05-01 20:31:15.523 +01:00] [INF] [8] Emby.Server.Implementations.AppBase.BaseConfigurationManager: Setting cache path: "C:\ProgramData\Jellyfin\Server\cache"
    [2025-05-01 20:31:15.530 +01:00] [INF] [8] Emby.Server.Implementations.Plugins.PluginManager: Loaded plugin: "TMDb" "10.10.7.0"
    [2025-05-01 20:31:15.534 +01:00] [INF] [8] Emby.Server.Implementations.Plugins.PluginManager: Loaded plugin: "Studio Images" "10.10.7.0"
    [2025-05-01 20:31:15.538 +01:00] [INF] [8] Emby.Server.Implementations.Plugins.PluginManager: Loaded plugin: "OMDb" "10.10.7.0"
    [2025-05-01 20:31:15.659 +01:00] [INF] [8] Emby.Server.Implementations.Plugins.PluginManager: Loaded plugin: "MusicBrainz" "10.10.7.0"
    [2025-05-01 20:31:15.661 +01:00] [INF] [8] Emby.Server.Implementations.Plugins.PluginManager: Loaded plugin: "AudioDB" "10.10.7.0"
    [2025-05-01 20:31:15.905 +01:00] [INF] [8] Jellyfin.Server.Migrations.MigrationRunner: Marking following migrations as applied because this is a fresh install: ["DisableTranscodingThrottling", "CreateLoggingConfigHeirarchy", "MigrateActivityLogDatabase", "RemoveDuplicateExtras", "MigrateUserDatabase", "MigrateDisplayPreferencesDatabase", "RemoveDownloadImagesInAdvance", "MigrateAuthenticationDatabase", "FixPlaylistOwner", "MigrateRatingLevels", "FixAudioData", "RemoveDuplicatePlaylistChildren"]
    [2025-05-01 20:31:15.911 +01:00] [INF] [8] Jellyfin.Server.Migrations.MigrationRunner: Applying migration '"AddDefaultPluginRepository"'
    [2025-05-01 20:31:15.912 +01:00] [INF] [8] Emby.Server.Implementations.AppBase.BaseConfigurationManager: Saving system configuration
    [2025-05-01 20:31:15.914 +01:00] [INF] [8] Emby.Server.Implementations.AppBase.BaseConfigurationManager: Setting cache path: "C:\ProgramData\Jellyfin\Server\cache"
    [2025-05-01 20:31:15.915 +01:00] [INF] [8] Jellyfin.Server.Migrations.MigrationRunner: Migration '"AddDefaultPluginRepository"' applied successfully
    [2025-05-01 20:31:15.917 +01:00] [INF] [8] Jellyfin.Server.Migrations.MigrationRunner: Applying migration '"ReaddDefaultPluginRepository"'
    [2025-05-01 20:31:15.919 +01:00] [INF] [8] Jellyfin.Server.Migrations.MigrationRunner: Migration '"ReaddDefaultPluginRepository"' applied successfully
    [2025-05-01 20:31:15.921 +01:00] [INF] [8] Jellyfin.Server.Migrations.MigrationRunner: Applying migration '"AddDefaultCastReceivers"'
    [2025-05-01 20:31:15.922 +01:00] [INF] [8] Emby.Server.Implementations.AppBase.BaseConfigurationManager: Saving system configuration
    [2025-05-01 20:31:15.924 +01:00] [INF] [8] Emby.Server.Implementations.AppBase.BaseConfigurationManager: Setting cache path: "C:\ProgramData\Jellyfin\Server\cache"
    [2025-05-01 20:31:15.925 +01:00] [INF] [8] Jellyfin.Server.Migrations.MigrationRunner: Migration '"AddDefaultCastReceivers"' applied successfully
    [2025-05-01 20:31:15.927 +01:00] [INF] [8] Jellyfin.Server.Migrations.MigrationRunner: Applying migration '"UpdateDefaultPluginRepository10.9"'
    [2025-05-01 20:31:15.929 +01:00] [INF] [8] Emby.Server.Implementations.AppBase.BaseConfigurationManager: Saving system configuration
    [2025-05-01 20:31:15.930 +01:00] [INF] [8] Emby.Server.Implementations.AppBase.BaseConfigurationManager: Setting cache path: "C:\ProgramData\Jellyfin\Server\cache"
    [2025-05-01 20:31:15.932 +01:00] [INF] [8] Jellyfin.Server.Migrations.MigrationRunner: Migration '"UpdateDefaultPluginRepository10.9"' applied successfully
    [2025-05-01 20:31:15.934 +01:00] [INF] [8] Jellyfin.Server.Migrations.MigrationRunner: Applying migration '"MoveTrickplayFiles"'
    [2025-05-01 20:31:16.057 +01:00] [INF] [8] Jellyfin.Server.Migrations.Routines.MoveTrickplayFiles: Moved 0 items in 00:00:00.1216942
    [2025-05-01 20:31:16.059 +01:00] [INF] [8] Jellyfin.Server.Migrations.MigrationRunner: Migration '"MoveTrickplayFiles"' applied successfully
    [2025-05-01 20:31:16.114 +01:00] [INF] [8] Main: Kestrel is listening on "0.0.0.0"
    [2025-05-01 20:31:17.411 +01:00] [INF] [8] Emby.Server.Implementations.ApplicationHost: Running startup tasks
    [2025-05-01 20:31:17.438 +01:00] [INF] [8] Emby.Server.Implementations.ScheduledTasks.TaskManager: Daily trigger for "Generate Trickplay Images" set to fire at 2025-05-02 03:00:00.000 +01:00, which is 06:28:42.5615814 from now.
    [2025-05-01 20:31:17.443 +01:00] [INF] [8] Emby.Server.Implementations.ScheduledTasks.TaskManager: Daily trigger for "Extract Chapter Images" set to fire at 2025-05-02 02:00:00.000 +01:00, which is 05:28:42.5568857 from now.
    [2025-05-01 20:31:17.452 +01:00] [ERR] [8] MediaBrowser.MediaEncoding.Encoder.MediaEncoder: Error validating encoder
    System.ComponentModel.Win32Exception (2): An error occurred trying to start process 'C:\Program Files\ffmpeg-2023-10-16-git-5ddab49d48-full_build\bin' with working directory 'C:\Program Files\Jellyfin\Server'. The system cannot find the file specified.
      at System.Diagnostics.Process.StartWithCreateProcess(ProcessStartInfo startInfo)
      at MediaBrowser.MediaEncoding.Encoder.EncoderValidator.GetProcessOutput(String path, String arguments, Boolean readStdErr, String testKey)
      at MediaBrowser.MediaEncoding.Encoder.EncoderValidator.ValidateVersion()
    [2025-05-01 20:31:17.467 +01:00] [ERR] [8] MediaBrowser.MediaEncoding.Encoder.MediaEncoder: FFmpeg: Failed version check: "C:\Program Files\ffmpeg-2023-10-16-git-5ddab49d48-full_build\bin"
    [2025-05-01 20:31:17.468 +01:00] [ERR] [8] MediaBrowser.MediaEncoding.Encoder.MediaEncoder: FFmpeg: Path set by "command line or environment variable" is invalid
    [2025-05-01 20:31:17.469 +01:00] [FTL] [8] Main: Error while starting server
    MediaBrowser.Common.FfmpegException: Failed to find valid ffmpeg
      at Emby.Server.Implementations.ApplicationHost.RunStartupTasksAsync()
      at Jellyfin.Server.Program.StartServer(IServerApplicationPaths appPaths, StartupOptions options, IConfiguration startupConfig)
    [2025-05-01 20:31:17.470 +01:00] [INF] [8] Main: Running query planner optimizations in the database... This might take a while
    [2025-05-01 20:31:17.498 +01:00] [INF] [8] Emby.Server.Implementations.ApplicationHost: Disposing "CoreAppHost"
    [2025-05-01 20:31:17.499 +01:00] [INF] [8] Emby.Server.Implementations.ApplicationHost: Disposing "MusicBrainzArtistProvider"
    [2025-05-01 20:31:17.501 +01:00] [INF] [8] Emby.Server.Implementations.ApplicationHost: Disposing "MusicBrainzAlbumProvider"
    [2025-05-01 20:31:17.502 +01:00] [INF] [8] Emby.Server.Implementations.ApplicationHost: Disposing "PluginManager"
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    Messages In This Thread
    Can't start Jellyfin - by ACTransitBusFightIAAMF - 2025-05-01, 07:35 PM
    RE: Can't start Jellyfin - by theguymadmax - 2025-05-01, 07:41 PM
    RE: Can't start Jellyfin - by ACTransitBusFightIAAMF - 2025-05-01, 07:54 PM

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