Can't start process on IL2CPP

[VNA-DJ]

youtube player is does not working. giving me this error

Win32Exception: ApplicationName='/var/folders/df/xbvq1ggn2ts0v0g3_bgn8gd40000gn/T/.../.../youtube-dl.exe', CommandLine='--dump-single-json -f "best" "https://www.youtube.com/watch?v=RcHJTZTrZGI​"', CurrentDirectory='', Native error= mono-io-layer-error (5) System.Diagnostics.Process.StartWithCreateProcess (System.Diagnostics.ProcessStartInfo startInfo) (at :0) System.Diagnostics.Process.Start () (at :0) (wrapper remoting-invoke-with-check) System.Diagnostics.Process.Start() YoutubePlayer.LocalYoutubeDl.ReadProcessOutputAsync (System.String filename, System.String arguments, System.Threading.CancellationToken cancellationToken) (at Packages/com.ibicha.youtube-player/Runtime/YoutubeDl/LocalYoutubeDl.cs:104) --- End of stack trace from previous location where exception was thrown --- System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () (at <695d1cc93cca45069c528c15c9fdd749>:0) System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Threading.Tasks.Task task) (at <695d1cc93cca45069c528c15c9fdd749>:0) System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Threading.Tasks.Task task) (at <695d1cc93cca45069c528c15c9fdd749>:0) System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd (System.Threading.Tasks.Task task) (at <695d1cc93cca45069c528c15c9fdd749>:0) System.Runtime.CompilerServices.TaskAwaiter1[TResult].GetResult () (at <695d1cc93cca45069c528c15c9fdd749>:0) YoutubePlayer.LocalYoutubeDl+<GetVideoMetaDataAsync>d__11[T].MoveNext () (at Packages/com.ibicha.youtube-player/Runtime/YoutubeDl/LocalYoutubeDl.cs:34) --- End of stack trace from previous location where exception was thrown --- System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () (at <695d1cc93cca45069c528c15c9fdd749>:0) System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Threading.Tasks.Task task) (at <695d1cc93cca45069c528c15c9fdd749>:0) System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Threading.Tasks.Task task) (at <695d1cc93cca45069c528c15c9fdd749>:0) System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd (System.Threading.Tasks.Task task) (at <695d1cc93cca45069c528c15c9fdd749>:0) System.Runtime.CompilerServices.TaskAwaiter1[TResult].GetResult () (at <695d1cc93cca45069c528c15c9fdd749>:0) YoutubePlayer.YoutubeDl+<GetVideoMetaDataAsync>d__131[T].MoveNext () (at Packages/com.ibicha.youtube-player/Runtime/YoutubeDl/YoutubeDl.cs:51) --- End of stack trace from previous location where exception was thrown --- System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () (at <695d1cc93cca45069c528c15c9fdd749>:0) System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Threading.Tasks.Task task) (at <695d1cc93cca45069c528c15c9fdd749>:0) System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Threading.Tasks.Task task) (at <695d1cc93cca45069c528c15c9fdd749>:0) System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd (System.Threading.Tasks.Task task) (at <695d1cc93cca45069c528c15c9fdd749>:0) System.Runtime.CompilerServices.TaskAwaiter1[TResult].GetResult () (at <695d1cc93cca45069c528c15c9fdd749>:0) YoutubePlayer.YoutubePlayer+<GetRawVideoUrlAsync>d__14.MoveNext () (at Packages/com.ibicha.youtube-player/Runtime/YoutubePlayer.cs:64) --- End of stack trace from previous location where exception was thrown --- System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () (at <695d1cc93cca45069c528c15c9fdd749>:0) System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Threading.Tasks.Task task) (at <695d1cc93cca45069c528c15c9fdd749>:0) System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Threading.Tasks.Task task) (at <695d1cc93cca45069c528c15c9fdd749>:0) System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd (System.Threading.Tasks.Task task) (at <695d1cc93cca45069c528c15c9fdd749>:0) System.Runtime.CompilerServices.TaskAwaiter1[TResult].GetResult () (at <695d1cc93cca45069c528c15c9fdd749>:0) YoutubePlayer.YoutubePlayer+d15.MoveNext () (at Packages/com.ibicha.youtube-player/Runtime/YoutubePlayer.cs:80) --- End of stack trace from previous location where exception was thrown --- System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () (at <695d1cc93cca45069c528c15c9fdd749>:0) System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess (System.Threading.Tasks.Task task) (at <695d1cc93cca45069c528c15c9fdd749>:0) System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification (System.Threading.Tasks.Task task) (at <695d1cc93cca45069c528c15c9fdd749>:0) System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd (System.Threading.Tasks.Task task) (at <695d1cc93cca45069c528c15c9fdd749>:0) System.Runtime.CompilerServices.TaskAwaiter.GetResult () (at <695d1cc93cca45069c528c15c9fdd749>:0) YoutubePlayer.PrepareYoutubeVideo+d2.MoveNext () (at Assets/YoutubePlayer/Scripts/PrepareYoutubeVideo.cs:17) --- End of stack trace from previous location where exception was thrown --- System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw () (at <695d1cc93cca45069c528c15c9fdd749>:0) System.Runtime.CompilerServices.AsyncMethodBuilderCore+<>c.b__6_0 (System.Object state) (at <695d1cc93cca45069c528c15c9fdd749>:0) UnityEngine.UnitySynchronizationContext+WorkRequest.Invoke () (at /Users/bokken/buildslave/unity/build/Runtime/Export/Scripting/UnitySynchronizationContext.cs:153) UnityEngine.UnitySynchronizationContext:ExecuteTasks() (at /Users/bokken/buildslave/unity/build/Runtime/Export/Scripting/UnitySynchronizationContext.cs:107)

[iBicha]

Can you provide some details (platform, unity version, etc)

[VNA-DJ]

PC/Mac and 2021.20.1

[iBicha]

Are you running in IL2CPP on desktop?

[Gama-Tech]

I'm also having this issue.

YouTube playback works in the Editor, but not in the Build. I'm using Unity 2021.3.3f1, and the build is targeting Windows and is compiling using IL2CPP.

[iBicha]

Unfortunately, it seems like an IL2CPP build cannot start a process. https://forum.unity.com/threads/win32-il2cpp-process-start-not-work.539258/ The options are to use a Mono backend, or to set YoutubeDl.UseLocalInstance to false on IL2CPP.

I will make YoutubeDl.UseLocalInstance be set to false by default on IL2CPP in a future release.

[Gama-Tech]

Thanks for the follow up, setting YoutubeDl.UseLocalInstance to false is a viable work around for me!