How to use sidecar to run tauri with a console app?

[Hellager]

I'm trying figure out how to properly use sidecar to run tauri with a console app building by c#.
Here's my test project tauri-sidecar-test. Run the console app with option -l will print some language code in console like en-US, zh-CN, try get these language code in tauri app.
Follow the guidance Embedding External Binaries, properly set tauri.conf.json.
If try execute sidecar in frontent, console.log(output) will have this error message Uncaught (in promise) invalid utf-8 sequence of 1 bytes from index 2. Since i've already set the console encoding to UTF8, i'm not sure why it fails.

  async function greet() {
    // Learn more about Tauri commands at https://tauri.app/v1/guides/features/command
    setGreetMsg(await invoke("greet", { name }));

    const command = Command.sidecar("console/MyConsoleApp", ["-l"])
    const output = await command.execute();
    console.log(output); // Get `Uncaught (in promise) invalid utf-8 sequence of 1 bytes from index 2`
  }

Then i try execute sidecar in rust, and it will be four times Failed to execute sidecar. (The number of language codes is 5.)

    let (mut rx, _) = Command::new_sidecar("MyConsoleApp")
    .expect("failed to create `MyConsoleApp` binary command")
    .args(["-l"])
    .spawn()
    .expect("Failed to spawn sidecar");

    tauri::async_runtime::spawn(async move {
        while let Some(event) = rx.recv().await {
            if let CommandEvent::Stdout(message) = event {
                println!("{}", message);
            } else {
                println!("Failed to execute sidecar");
            }
        }
    });

So am i did anything wrong? How to properly using sidecar with a console app?

[akaigyouhou]

I guess you should use some like new_sidecar(...).encoding(..).spawn(..), but I am still quite not sure the correct answer

[Hellager]

Thanks for you help, i just forget to update this discussion.
The problem is the console app cannot correctly load the dll specific in tauri->bundle->resources.
This may be fixed soon with this pr feat: allow specifying a resource map, closes #5844 #5950

[Hellager]

I have asked an issue [bug] Always get Uncaught (in promise) invalid utf-8 sequence of 1 bytes from index 2 with sidecar and figured out why.
The problem is the console app cannot correctly load the dll specific in tauri->bundle->resources.
So the solution is quite simply, bundle all your assemblies like dll to your console app will fix it.
If you are using c# .net framework to build your console app and have the same issue, strongly recommend to use Costura.Fody. For more detail, check this Embedding DLLs in a compiled executable