Kaimon crashes on startup on Windows (opening file "/dev/tty")

[cstjean]

Not sure if this is a Kaimon or a Tachikoma issue.

I don't think my setup is particularly exotic. The original setup worked fine, but afterwards I get this:

PS C:\Users\me> kaimon
ERROR: SystemError: opening file "/dev/tty": No such file or directory
Stacktrace:
  [1] systemerror(p::String, errno::Int32; extrainfo::Nothing)
    @ Base .\error.jl:186
  [2] open(fname::String; lock::Bool, read::Nothing, write::Nothing, create::Nothing, truncate::Bool, append::Nothing)
    @ Base .\iostream.jl:317
  [3] open
    @ .\iostream.jl:296 [inlined]
  [4] open(fname::String, mode::String; lock::Bool)
    @ Base .\iostream.jl:380
  [5] open
    @ .\iostream.jl:379 [inlined]
  [6] _start_stdout_capture!()
    @ Kaimon C:\Users\a1058035\.julia\packages\Kaimon\6N7iB\src\tui\io.jl:211
  [7] init!(m::Kaimon.KaimonModel, _t::Tachikoma.Terminal)
    @ Kaimon C:\Users\a1058035\.julia\packages\Kaimon\6N7iB\src\tui\lifecycle.jl:212
  [8] (::Tachikoma.var"#229#230"{Int64, Bool, Kaimon.KaimonModel, Base.RefValue{Any}, Base.RefValue{Any}, Base.RefValue{Bool}})(t::Tachikoma.Terminal)
    @ Tachikoma C:\Users\a1058035\.julia\packages\Tachikoma\vrBon\src\app.jl:1011
  [9] with_terminal(f::Tachikoma.var"#229#230"{Int64, Bool, Kaimon.KaimonModel, Base.RefValue{Any}, Base.RefValue{Any}, Base.RefValue{Bool}}; tty_out::Nothing, tty_size::Nothing, on_stdout::Nothing, on_stderr::Nothing)
    @ Tachikoma C:\Users\a1058035\.julia\packages\Tachikoma\vrBon\src\terminal.jl:1515
 [10] with_terminal
    @ C:\Users\a1058035\.julia\packages\Tachikoma\vrBon\src\terminal.jl:1493 [inlined]
 [11] app(model::Kaimon.KaimonModel; fps::Int64, default_bindings::Bool, on_stdout::Nothing, on_stderr::Nothing, tty_out::Nothing, tty_size::Nothing)
    @ Tachikoma C:\Users\a1058035\.julia\packages\Tachikoma\vrBon\src\app.jl:1010
 [12] invokelatest
    @ .\Base_compiler.jl:250 [inlined]
 [13] tui(; port::Int64, theme_name::Nothing, revise_polling::Bool, revise_mod::Nothing)
    @ Kaimon C:\Users\a1058035\.julia\packages\Kaimon\6N7iB\src\tui\lifecycle.jl:440
 [14] main(ARGS::Vector{String})
    @ Kaimon C:\Users\a1058035\.julia\packages\Kaimon\6N7iB\src\Kaimon.jl:2657
 [15] _start()
    @ Base .\client.jl:556

[BambOoxX]

Same here...

[BambOoxX]

To be precise, this seems to come from

Kaimon.jl/src/tui/io.jl

Line 211 in 30d378d

_TUI_REAL_STDOUT[] = open("/dev/tty", "w")

Which does not make much sense on Windows. In such a context wouldn't a

 _TUI_REAL_STDOUT[] = open(tempname(), "w")

be better ?
Which would generalize to

_TUI_REAL_STDOUT[] = iswindows() ? open(tempname(), "w") : open("/dev/tty", "w") 

[kahliburke]

Unfortunately I don't use Windows and don't have a good testing environment. I appreciate the bug report and will investigate. But I likely need some assistance in testing any fixes. Of course PRs which have been tested in Windows independently would be appreciated.

[cstjean]

I appreciate it! To be transparent, I was eager to try out Kaimon, but now julia-mcp has proven sufficient, so I wouldn't be a good test user at this time. Maybe @BambOoxX ?

[BambOoxX]

I'm fully discovering this world, so I'm not sure I would be the perfect beta tester, but I can try.
@kahliburke Are there any caveats to dev Kaimon ? I've just followed the steps of the documentation to set it up, but contributing might be trickier.

[kahliburke]

@BambOoxX not really, it's a standard Julia package and follows the conventions. The only thing a little less common which I've used is the Julia 'app' system which allows installing the script to start the TUI. You can dev the app as well with ]app dev ....

If there's something I can assist with let me know.

[kahliburke]

@cstjean I've read that recent updates to VSCode have included kitty terminal support, which might be one possible thing to try, if you find the interest. Also, I recommend WSL as this stuff likely works great in that environment too.

[kahliburke]

Fixed. _start_stdout_capture! now opens CON on Windows instead of /dev/tty (src/tui/io.jl) — that's exactly the call in your stacktrace, so this crash is resolved on 2.0-integration.

Full Windows support has a couple more pieces (the ZMQ ipc://→TCP switch), which are done and tracked in the umbrella issue #41 — that's where Windows verification will continue. Closing this one as the specific /dev/tty crash is fixed. Thanks for the clear report!

[franckgaga]

Hello!

It seems that the issue is not resolved. I tried to run the app on Windows 11 and it returns this error:

PS C:\Users\francis.gagnon> kaimon
ERROR: SystemError: opening file "/dev/tty": No such file or directory
Stacktrace:
  [1] systemerror(p::String, errno::Int32; extrainfo::Nothing)
    @ Base .\error.jl:186
  [2] open(fname::String; lock::Bool, read::Nothing, write::Nothing, create::Nothing, truncate::Bool, append::Nothing)
    @ Base .\iostream.jl:317
  [3] open
    @ .\iostream.jl:296 [inlined]
  [4] open(fname::String, mode::String; lock::Bool)
    @ Base .\iostream.jl:380
  [5] open
    @ .\iostream.jl:379 [inlined]
  [6] _start_stdout_capture!()
    @ Kaimon C:\Users\francis.gagnon\.julia\packages\Kaimon\6N7iB\src\tui\io.jl:211
  [7] init!(m::Kaimon.KaimonModel, _t::Tachikoma.Terminal)
    @ Kaimon C:\Users\francis.gagnon\.julia\packages\Kaimon\6N7iB\src\tui\lifecycle.jl:212
  [8] (::Tachikoma.var"#229#230"{Int64, Bool, Kaimon.KaimonModel, Base.RefValue{Any}, Base.RefValue{Any}, Base.RefValue{Bool}})(t::Tachikoma.Terminal)
    @ Tachikoma C:\Users\francis.gagnon\.julia\packages\Tachikoma\35crv\src\app.jl:1011
  [9] with_terminal(f::Tachikoma.var"#229#230"{Int64, Bool, Kaimon.KaimonModel, Base.RefValue{Any}, Base.RefValue{Any}, Base.RefValue{Bool}}; tty_out::Nothing, tty_size::Nothing, on_stdout::Nothing, on_stderr::Nothing)
    @ Tachikoma C:\Users\francis.gagnon\.julia\packages\Tachikoma\35crv\src\terminal.jl:1515
 [10] with_terminal
    @ C:\Users\francis.gagnon\.julia\packages\Tachikoma\35crv\src\terminal.jl:1493 [inlined]
 [11] app(model::Kaimon.KaimonModel; fps::Int64, default_bindings::Bool, on_stdout::Nothing, on_stderr::Nothing, tty_out::Nothing, tty_size::Nothing)
    @ Tachikoma C:\Users\francis.gagnon\.julia\packages\Tachikoma\35crv\src\app.jl:1010
 [12] invokelatest
    @ .\Base_compiler.jl:250 [inlined]
 [13] tui(; port::Int64, theme_name::Nothing, revise_polling::Bool, revise_mod::Nothing)
    @ Kaimon C:\Users\francis.gagnon\.julia\packages\Kaimon\6N7iB\src\tui\lifecycle.jl:440
 [14] main(ARGS::Vector{String})
    @ Kaimon C:\Users\francis.gagnon\.julia\packages\Kaimon\6N7iB\src\Kaimon.jl:2657
 [15] _start()
    @ Base .\client.jl:556

Thanks!

[kahliburke]

@franckgaga We're working on the 2.0 release, could you take a look at the 2.0-integration branch?

[franckgaga]

@kahliburke just tried to install it and it seems there is a conflict in the various Project.toml files:

(@v1.12) pkg> add Kaimon#2.0-integration
    Updating git-repo `https://github.com/kahliburke/Kaimon.jl.git`
   Resolving package versions...
ERROR: Unsatisfiable requirements detected for package KaimonGate [5ee84a8c]:
 KaimonGate [5ee84a8c] log:
 ├─KaimonGate [5ee84a8c] has no known versions!
 └─restricted to versions 0.1 by Kaimon [d3856c55] — no versions left
   └─Kaimon [d3856c55] log:
     ├─possible versions are: 1.3.1 or uninstalled
     └─Kaimon [d3856c55] is fixed to version 1.3.1

[kahliburke]

@franckgaga Thanks I'll fix

[kahliburke]

While in development mode here, you should use dev instead of add. This is because KaimonGate uses [sources] in the Project.toml to resolve the Kaimon code it's developed against. So, two ways:

1. Clone the branch, then dev the path:

git clone -b 2.0-integration
https://github.com/kahliburke/Kaimon.jl.git
pkg> dev /path/to/Kaimon.jl

2. Let dev clone it, then switch branches in the dev dir:

  pkg> dev Kaimon          # clones default branch to ~/.julia/dev/Kaimon
  cd ~/.julia/dev/Kaimon && git checkout 2.0-integration
  pkg> resolve             # re-resolve against the now-checked-out branch