[Bug] yt-dlp is not found after preview update

[zmzmka233]

Describe the bug

tried to download a video but there was an error

Describe the expected result

download will run smoothly

URL

No response

Download Options

No response

Debugging Information

App: Nickvision Parabolic
Version: 2026.4.1

Operating System: Microsoft Windows 10.0.19044
Deployment Mode: Local
Locale: ja-JP
Running From: W:\Program Files\Nickvision Parabolic\Release
NativeAOT: True

Database encrypted: True
Log path: C:\Users\Administrator\AppData\Local\Nickvision Parabolic\app.log

yt-dlp: not found
deno: 2.8.0
ffmpeg: n8.1-11-g75d37c499d-20260430 
aria2: 1.37.0

AllowPreviewUpdates = True
AriaMaxConnectionsPerServer = 16
AriaMinSplitSize = 20
AudioBitrate = 1.7976931348623157E+308
AudioFormatIds = {
  "Video": "BEST_AUDIO",
  "MP4": "BEST_AUDIO",
  "MKV": "BEST_AUDIO",
  "WEBM": "BEST_AUDIO",
  "MOV": "BEST_AUDIO",
  "AVI": "BEST_AUDIO",
  "Audio": "BEST_AUDIO",
  "MP3": "BEST_AUDIO",
  "M4A": "BEST_AUDIO",
  "OPUS": "BEST_AUDIO",
  "FLAC": "BEST_AUDIO",
  "WAV": "BEST_AUDIO",
  "OGG": "BEST_AUDIO"
}
AudioOnlyFileType = 7
CookiesBrowser = 0
CookiesPath = ""
CropAudioThumbnails = False
DownloadImmediately = false
DownloadImmediatelyAsAudio = False
DownloadImmediatelyAsVideo = False
EmbedChapters = True
EmbedMetadata = True
EmbedSubtitles = True
EmbedThumbnails = False
ExportDescription = False
ExportM3U = false
FullFileType = 1
HistoryLength = -1
IncludeAutoGeneratedSubtitles = False
IncludeMediaIdInTitle = True
IncludeSuperResolutions = False
installed_deno_appversion = {
  "BaseVersion": "2.8.0",
  "PreviewLabel": ""
}
installed_yt-dlp_appversion = {
  "BaseVersion": "2026.5.16.233954",
  "PreviewLabel": ""
}
InstalledYtdlpAppVersion = {
    "BaseVersion": "2026.3.17",
    "PreviewLabel": ""
  }
LimitCharacters = true
MaxNumberOfActiveDownloads = 10
NumberTitles = false
OverwriteExistingFiles = True
PostprocessingArguments = []
PostprocessingThreads = 12
PostProcessorArgumentName = ""
PreferredAudioCodec = 0
PreferredFrameRate = 0
PreferredSubtitleFormat = 0
PreferredVideoCodec = 0
PreventSuspend = False
ProxyUrl = 127.0.0.1:1081
RemoveSourceData = True
ReverseDownloadOrder = false
SaveFolder = 
ShowDisclaimerOnStartup = False
ShowDislcaimerOnStartup = false
SpeedLimit = ""
SplitChapters = False
SubtitleLanguages = []
Theme = 2
TranslateMetadataAndChapters = False
TranslationLanguage = ""
UseAria = False
UsePartFiles = True
VideoFormatIds = {
  "Video": "BEST_VIDEO",
  "MP4": "BEST_VIDEO",
  "MKV": "BEST_VIDEO",
  "WEBM": "BEST_VIDEO",
  "MOV": "BEST_VIDEO",
  "AVI": "BEST_VIDEO",
  "Audio": "NONE_VIDEO",
  "MP3": "NONE_VIDEO",
  "M4A": "NONE_VIDEO",
  "OPUS": "NONE_VIDEO",
  "FLAC": "NONE_VIDEO",
  "WAV": "NONE_VIDEO",
  "OGG": "NONE_VIDEO"
}
VideoOnlyFileType = 1
VideoResolution = {
    "Width": 2147483647,
    "Height": 2147483647
  }
WindowGeometry = {
  "Height": 1060,
  "IsMaximized": true,
  "Width": 1938,
  "X": -9,
  "Y": -9
}
YouTubeSponsorBlock = False
YtdlpDiscoveryArgs = ""
YtdlpDownloadArgs = ""

Additional context

No response

[zmzmka233]

updated but the problem isn't fixed

[nlogozzo]

Yes that's why the issue is still open ;)

Can you check %LOCALAPPDATA% for a yt-dlp.exe file? If it exists, delete it and see if it works after.

[zmzmka233]

deleted it and yt-dlp is found

[nlogozzo]

Seems like something is wrong when it downloads preview updates then