JsonReaderException: 'a' is an invalid start of a property name

Hi There,

I’m starting to see this issue pop up now.

 ---> System.Text.Json.JsonReaderException: 'a' is an invalid start of a property name. Expected a '"'. LineNumber: 0 | BytePositionInLine: 1.
   at System.Text.Json.ThrowHelper.ThrowJsonReaderException(Utf8JsonReader& json, ExceptionResource resource, Byte nextByte, ReadOnlySpan`1 bytes)
   at System.Text.Json.Utf8JsonReader.ReadSingleSegment()
   at System.Text.Json.Utf8JsonReader.Read()
   at System.Text.Json.JsonDocument.Parse(ReadOnlySpan`1 utf8JsonSpan, Utf8JsonReader reader, MetadataDb& database, StackRowStack& stack)
   at System.Text.Json.JsonDocument.Parse(ReadOnlyMemory`1 utf8Json, JsonReaderOptions readerOptions, Byte[] extraRentedBytes)
   at System.Text.Json.JsonDocument.Parse(ReadOnlyMemory`1 json, JsonDocumentOptions options)
   at YoutubeExplode.Internal.Json.Parse(String source)
   at YoutubeExplode.ReverseEngineering.Responses.WatchPage.TryGetPlayerConfig()
   at YoutubeExplode.Videos.Streams.StreamClient.GetStreamContextFromWatchPageAsync(VideoId videoId)
   at YoutubeExplode.Videos.Streams.StreamClient.GetManifestAsync(VideoId videoId)
   at AudioChord.Extractors.YouTubeExtractor.ExtractSongAsync(String videoId, TimeSpan maximumDuration)
   at AudioChord.MusicService.DownloadSongAsync(String url, Boolean ignoreCache)
   at Railgun.Music.Scheduler.MusicScheduler.FetchSongAsync(SongId id) in /home/nekoputer/Github/Railgun/Railgun/Music/MusicScheduler.cs:line 225
   --- End of inner exception stack trace ---
   at Railgun.Music.Scheduler.MusicScheduler.RequestNextSongAsync() in /home/nekoputer/Github/Railgun/Railgun/Music/MusicScheduler.cs:line 78
   at Railgun.Music.Player.StartAsync() in /home/nekoputer/Github/Railgun/Railgun/Music/Player.cs:line 148

Is it possible that YT changed something on their side again?

[Tyrrrz]

I tried to push a backwards-compatible fix for this. Let’s see if it actually works.

[Isayso]

today I got the error back and the new nuget package fixed it- Thanks a lot!!!

FYI: But, I have some videos now who don’t have a working audio stream. YTExplode get an audio and video stream, but the audio stream is empty (wich also leads to a download error - no data). So probably there is still something going on? Lets wait and see.

FYI2: This video with no audio isn’t playable in vlc at all https://www.youtube.com/watch?v=cJ0WE4JkROA and libreelec can play it correctly.

code for the audio:

var streamInfoA = streamManifest.GetAudio() .Where(s => s.Container == Container.Mp4) .WithHighestBitrate();