Possible to run in an x11/WSL2 environment? #279

affans · 2021-04-19T15:22:44Z

I have a Windows 10 machine with WSL2 running (i.e. full linux kernel). I have an X11 server running that works with other Julia packages (i.e. Plots.jl and Gnuplot.jl) where the GUI is pushed through x11. However, this dosn't work for Blink.

julia> using Blink

julia> w = Window() # Open a new window
ERROR: IOError: connect: connection refused (ECONNREFUSED)
Stacktrace:
  [1] wait_connected(x::Sockets.TCPSocket)
    @ Sockets /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.6/Sockets/src/Sockets.jl:532
  [2] connect
    @ /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.6/Sockets/src/Sockets.jl:567 [inlined]
  [3] connect(addr::Sockets.IPv4, port::Int64)
    @ Sockets /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.6/Sockets/src/Sockets.jl:553
  [4] try_connect(::Sockets.IPv4, ::Vararg{Any, N} where N; interval::Float64, attempts::Int64)
    @ Blink.AtomShell ~/.julia/packages/Blink/mwJC9/src/AtomShell/process.jl:79
  [5] try_connect
    @ ~/.julia/packages/Blink/mwJC9/src/AtomShell/process.jl:77 [inlined]
  [6] init(; debug::Bool)
    @ Blink.AtomShell ~/.julia/packages/Blink/mwJC9/src/AtomShell/process.jl:93
  [7] #shell#9
    @ ~/.julia/packages/Blink/mwJC9/src/AtomShell/process.jl:149 [inlined]
  [8] shell
    @ ~/.julia/packages/Blink/mwJC9/src/AtomShell/process.jl:144 [inlined]
  [9] #Window#14
    @ ~/.julia/packages/Blink/mwJC9/src/AtomShell/window.jl:89 [inlined]
 [10] Window()
    @ Blink.AtomShell ~/.julia/packages/Blink/mwJC9/src/AtomShell/window.jl:89
 [11] top-level scope
    @ REPL[8]:1

The text was updated successfully, but these errors were encountered:

twavv · 2021-04-19T20:08:12Z

Not sure about this. If you (or anyone) want to debug further, the ECONNREFUSED probably comes from Blink.jl trying to connect to the Electron process. Instrumenting the Blink.jl code to print out the stdout/stderr from the Elector process (or log it to a file or whataver) would probably help explain why it's failing to connect.

pfitzseb · 2021-04-19T20:16:03Z

It's possible that

Blink.jl/src/AtomShell/process.jl

Line 93 in 204623f

conn = try_connect(ip"127.0.0.1", p)

needs to connect to 0.0.0.0 or localhost directly, instead of 127.0.0.1 as per this. Can you give that a try?

twavv · 2021-04-19T20:50:32Z

@pfitzseb Seems like that article is talking about external machines accessing a port on the localhost.

I've seen an error like this before that boiled down to the Electron subprocess failing to start (thus the connection fails since Electron isn't actually listening on that port).

affans · 2021-04-19T23:54:17Z

@pfitzseb I tried that but could it also be a port problem? I changed to

 println("initializaing to local host on port $p")
  #conn = try_connect(ip"127.0.0.1", p)
  conn = try_connect(ip"0.0.0.0", p)

and got output

julia> w = Window() # Open a new window
initializaing to local host on port 4193
attemping to connect
ERROR: IOError: connect: connection refused (ECONNREFUSED)

With debug information printed, I get

julia> w = Window() # Open a new window
/usr/bin/xdg-open: 851: /usr/bin/xdg-open: x-www-browser: not found
/usr/bin/xdg-open: 851: /usr/bin/xdg-open: firefox: not found
/usr/bin/xdg-open: 851: /usr/bin/xdg-open: iceweasel: not found
/usr/bin/xdg-open: 851: /usr/bin/xdg-open: seamonkey: not found
/usr/bin/xdg-open: 851: /usr/bin/xdg-open: mozilla: not found
/usr/bin/xdg-open: 851: /usr/bin/xdg-open: epiphany: not found
/usr/bin/xdg-open: 851: /usr/bin/xdg-open: konqueror: not found
/usr/bin/xdg-open: 851: /usr/bin/xdg-open: chromium: not found
/usr/bin/xdg-open: 851: /usr/bin/xdg-open: chromium-browser: not found
/usr/bin/xdg-open: 851: /usr/bin/xdg-open: google-chrome: not found
/usr/bin/xdg-open: 851: /usr/bin/xdg-open: www-browser: not found
/usr/bin/xdg-open: 851: /usr/bin/xdg-open: links2: not found
/usr/bin/xdg-open: 851: /usr/bin/xdg-open: elinks: not found
/usr/bin/xdg-open: 851: /usr/bin/xdg-open: links: not found
/usr/bin/xdg-open: 851: /usr/bin/xdg-open: lynx: not found
/usr/bin/xdg-open: 851: /usr/bin/xdg-open: w3m: not found
xdg-open: no method available for opening 'http://localhost:8080/debug?port=2024'
ERROR: failed process: Process(`xdg-open 'http://localhost:8080/debug?port=2024'`, ProcessExited(3)) [3]

so seems like I need maybe a browser installed on my WSL2?

pfitzseb · 2021-04-20T07:52:01Z

That shouldn't be necessary -- I suspect you only got that output because you turned debug info on ;) I'll look into getting a WSL env set up at some point...

affans · 2021-04-20T16:31:49Z

It might be ... so first I did [/mnt/c/Users/affan]$ export BROWSER=/usr/local/bin/edge where edge is a symbolic link to my MS Edge browser on the Win 10 machine.

Then running

julia> w = Window() # Open a new window
true
initializaing to local host
/home/affan/.julia/dev/Blink/deps/atom/electron: error while loading shared libraries: libasound.so.2: cannot open shared object file: No such file or directory
ERROR: IOError: connect: connection refused (ECONNREFUSED)
Stacktrace:
  [1] wait_connected(x::Sockets.TCPSocket)
    @ Sockets /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.6/Sockets/src/Sockets.jl:532
  [2] connect
    @ /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.6/Sockets/src/Sockets.jl:567 [inlined]
  [3] connect(addr::Sockets.IPv4, port::Int64)
    @ Sockets /buildworker/worker/package_linux64/build/usr/share/julia/stdlib/v1.6/Sockets/src/Sockets.jl:553
  [4] try_connect(::Sockets.IPv4, ::Vararg{Any, N} where N; interval::Float64, attempts::Int64)
    @ Blink.AtomShell ~/.julia/dev/Blink/src/AtomShell/process.jl:80
  [5] try_connect
    @ ~/.julia/dev/Blink/src/AtomShell/process.jl:78 [inlined]
  [6] init(; debug::Bool)
    @ Blink.AtomShell ~/.julia/dev/Blink/src/AtomShell/process.jl:98
  [7] #shell#9
    @ ~/.julia/dev/Blink/src/AtomShell/process.jl:155 [inlined]
  [8] shell
    @ ~/.julia/dev/Blink/src/AtomShell/process.jl:150 [inlined]
  [9] #Window#14
    @ ~/.julia/dev/Blink/src/AtomShell/window.jl:89 [inlined]
 [10] Window()
    @ Blink.AtomShell ~/.julia/dev/Blink/src/AtomShell/window.jl:89
 [11] top-level scope
    @ REPL[3]:1

so the xdg-open errors have gone away and indeed the browser pops up and points to http://localhost:8080/debug?port=6256 (which fails because of networking stuff I am not familiar with)

twavv · 2021-04-20T22:29:08Z

Yep, looks like Electron is failing to start. You should be able to simply launch electron by running /home/affan/.julia/dev/Blink/deps/atom/electron (which should make figuring out exactly why it's failing to launch easier).

That error (libasound.so.2: cannot open shared object file: No such file or directory) implies that libasound2 is not installed. I think you can just install it with apt install libasound2 (WSL uses Debian/Ubuntu right?). There might be a few other libraries you have to install as well if they come up as issues.

affans · 2021-04-20T22:52:17Z

Ahh success

*[master][~/.julia/dev/Blink/deps/atom]$ ./electron
./electron: error while loading shared libraries: libasound.so.2: cannot open shared object file: No such file or directory

*[master][~/.julia/dev/Blink/deps/atom]$ sudo apt-get install libasound2
... installing ...
*[master][~/.julia/dev/Blink/deps/atom]$ ./electron

Electron 4.0.4 - Build cross platform desktop apps with JavaScript, HTML, and CSS
Usage: electron [options] [path]

and then

julia> w = Window() # Open a new window
true
initializaing to local host
connecting finished
Window(1, Electron(Process(`/home/affan/.julia/dev/Blink/deps/atom/electron --debug=9700 /home/affan/.julia/dev/Blink/src/AtomShell/main.js port 4252`, ProcessRunning), Sockets.TCPSocket(RawFD(21) active, 0 bytes waiting), Dict{String, Any}("callback" => Blink.var"#1#2"())), Page(1, WebSocket(server, CONNECTED), Dict{String, Any}("webio" => Blink.AtomShell.var"#22#23"{Blink.AtomShell.WebIOBlinkComm}(Blink.AtomShell.WebIOBlinkComm(Window(#= circular reference @-5 =#))), "callback" => Blink.var"#1#2"()), Distributed.Future(1, 1, 1, Some(true))), Task (done) @0x00007f1cc686f880)

julia> body!(w, "Hello World")
Page(1, WebSocket(server, CONNECTED), Dict{String, Any}("webio" => Blink.AtomShell.var"#22#23"{Blink.AtomShell.WebIOBlinkComm}(Blink.AtomShell.WebIOBlinkComm(Window(1, Electron(Process(`/home/affan/.julia/dev/Blink/deps/atom/electron --debug=9700 /home/affan/.julia/dev/Blink/src/AtomShell/main.js port 4252`, ProcessRunning), Sockets.TCPSocket(RawFD(21) active, 0 bytes waiting), Dict{String, Any}("callback" => Blink.var"#1#2"())), Page(#= circular reference @-5 =#), Task (done) @0x00007f1cc686f880))), "callback" => Blink.var"#1#2"()), Distributed.Future(1, 1, 1, Some(true)))

Can the issue be closed? I would say that an edit to README to try running electron directly might solve some problems.

Edit: WSL2 is a minimal vm and I have Ubuntu installed on it. I don't know why that particular library wasn't there by default.

affans · 2021-04-23T15:37:02Z

@travigd @pfitzseb It seems like there is still a slight issue. Seems like there needs to be a browser installed (or atleast a BROWSER env variable set).

julia> browse(df)
true
/usr/bin/xdg-open: 851: /usr/bin/xdg-open: x-www-browser: not found
/usr/bin/xdg-open: 851: /usr/bin/xdg-open: firefox: not found
/usr/bin/xdg-open: 851: /usr/bin/xdg-open: iceweasel: not found
/usr/bin/xdg-open: 851: /usr/bin/xdg-open: seamonkey: not found
/usr/bin/xdg-open: 851: /usr/bin/xdg-open: mozilla: not found
/usr/bin/xdg-open: 851: /usr/bin/xdg-open: epiphany: not found
/usr/bin/xdg-open: 851: /usr/bin/xdg-open: konqueror: not found
/usr/bin/xdg-open: 851: /usr/bin/xdg-open: chromium: not found
/usr/bin/xdg-open: 851: /usr/bin/xdg-open: chromium-browser: not found
/usr/bin/xdg-open: 851: /usr/bin/xdg-open: google-chrome: not found
/usr/bin/xdg-open: 851: /usr/bin/xdg-open: www-browser: not found
/usr/bin/xdg-open: 851: /usr/bin/xdg-open: links2: not found
/usr/bin/xdg-open: 851: /usr/bin/xdg-open: elinks: not found
/usr/bin/xdg-open: 851: /usr/bin/xdg-open: links: not found
/usr/bin/xdg-open: 851: /usr/bin/xdg-open: lynx: not found
/usr/bin/xdg-open: 851: /usr/bin/xdg-open: w3m: not found
xdg-open: no method available for opening 'http://localhost:8080/debug?port=9715'
ERROR: failed process: Process(`xdg-open 'http://localhost:8080/debug?port=9715'`, ProcessExited(3)) [3]

Stacktrace:
  [1] pipeline_error
    @ ./process.jl:525 [inlined]
  [2] run(::Cmd; wait::Bool)
    @ Base ./process.jl:440
  [3] run
    @ ./process.jl:438 [inlined]
  [4] inspector(port::Int64)
    @ Blink.AtomShell ~/.julia/dev/Blink/src/AtomShell/process.jl:38
  [5] init(; debug::Bool)
    @ Blink.AtomShell ~/.julia/dev/Blink/src/AtomShell/process.jl:93
  [6] #shell#9
    @ ~/.julia/dev/Blink/src/AtomShell/process.jl:155 [inlined]
  [7] shell
    @ ~/.julia/dev/Blink/src/AtomShell/process.jl:150 [inlined]
  [8] #Window#14
    @ ~/.julia/dev/Blink/src/AtomShell/window.jl:89 [inlined]
  [9] Window
    @ ~/.julia/dev/Blink/src/AtomShell/window.jl:89 [inlined]
 [10] browse(df::DataFrame; kwargs::Base.Iterators.Pairs{Union{}, Union{}, Tuple{}, NamedTuple{(), Tuple{}}})
    @ FloatingTableView ~/.julia/packages/FloatingTableView/foXK9/src/FloatingTableView.jl:64
 [11] browse(df::DataFrame)
    @ FloatingTableView ~/.julia/packages/FloatingTableView/foXK9/src/FloatingTableView.jl:63
 [12] top-level scope
    @ REPL[3]:1

With my case, I can do export BROWSER=/usr/local/bin/edge which is a symlink to my edge browser on the win10 machine. Then running browse(df) pops open a tab pointing to localhost:xxxx

twavv added windows electron Issues related to the underlying Electron instance question labels Apr 20, 2021

twavv mentioned this issue Apr 21, 2021

Update README.md #280

Merged

twavv closed this as completed in #280 Apr 21, 2021

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Possible to run in an x11/WSL2 environment? #279

Possible to run in an x11/WSL2 environment? #279

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Possible to run in an x11/WSL2 environment? #279

Possible to run in an x11/WSL2 environment? #279

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