wezterm Multiplexing connect server error.

[qinyuntan]

What Operating System(s) are you seeing this problem on?

Linux X11, macOS

Which Wayland compositor or X11 Window manager(s) are you using?

No response

WezTerm version

20240203-110809-5046fc22

Did you try the latest nightly build to see if the issue is better (or worse!) than your current version?

Yes, and I updated the version box above to show the version of the nightly that I tried

Describe the bug

Hi, when i use Multiplexing to connect my server linux. I got an error:
$: wezterm connect my
2024-03-21 13:56:22.777 wezterm-gui[10013:181624] WARNING: Secure coding is not enabled for restorable state! Enable secure coding by implementing NSApplicationDelegate.applicationSupportsSecureRestorableState: and returning YES.
13:56:23.348 ERROR wezterm_client::client > ssh stderr: zsh:1: command not found: wezterm

13:56:23.348 ERROR wezterm_client::client > wezterm cli --prefer-mux proxy: Exited with code 127
13:56:23.348 ERROR wezterm_client::client > Error while decoding response pdu: decoding a PDU: reading PDU length: EOF while reading leb128 encoded value
13:56:23.349 ERROR wezterm_gui > Please install the same version of wezterm on both the client and server! The server reported error 'Error while decoding response pdu: decoding a PDU: reading PDU length: EOF while reading leb128 encoded value' while being asked for its version. This likely means that the server is older than the client.
; terminating
13:56:23.349 ERROR mux::connui > while running ConnectionUI loop: recv_timeout: channel is empty and disconnected

And my client wezterm version is the same with server
20240203-110809-5046fc22

And in client macos, i add an export to my ~/.zshrc:
export PATH=$PATH:/Applications/WezTerm.app/Contents/MacOS

I have do the same config in my server:
export PATH=$PATH:/home/myworkspace/tools/wezterm/target/release

And either in client and server , i can use wezterm command indirect.

What can i do to solve this problem?

To Reproduce

No response

Configuration

no need

Expected Behavior

No response

Logs

No response

Anything else?

No response

[alvin883]

Hi I'm trying wezterm and I have the same issue, did you able to find solution / workaround?

in my case, I tried to connect to MacOs from Fedora (Wayland) and the same error appear although if I do it in reverse (connect to Fedora from MacOs) it works just fine

both machine are using the same version (20240203-110809-5046fc22)

here is the error:

14:46:17.469  ERROR  wezterm_client::client > ssh stderr: zsh:1: command not found: wezterm

14:46:17.570  ERROR  wezterm_client::client > wezterm cli --prefer-mux proxy: Exited with code 127
14:46:17.570  ERROR  wezterm_client::client > Error while decoding response pdu: decoding a PDU: reading PDU length: EOF while reading leb128 encoded value
14:46:17.570  ERROR  mux::connui            > while running ConnectionUI loop: recv_timeout: channel is empty and disconnected
14:46:17.571  ERROR  wezterm_gui            > Please install the same version of wezterm on both the client and server! The server reported error 'Error while decoding response pdu: decoding a PDU: reading PDU length: EOF while reading leb128 encoded value' while being asked for its version.  This likely means that the server is older than the client.
; terminating

Thanks!

[alvin883]

TL;DR

in my case, it turns out that the wezterm PATH on MacOS for non-interactive ssh is missing. It's in the first error line, the rest of error message is irrelevant

I think non-interactive ssh is the mode that wezterm connect use by default *CMIIW

---

Step by step guide:

how do you check the path to wezterm? you can run this on the host machine (MacOS in my case):

$ which wezterm
# in my case the output is: /opt/homebrew/bin

how do you check that path above is missing in ssh connection? you can run this on the guest machine (Fedora in my case):

$ ssh alvinnovian@mac env | grep PATH
# in my case the output is: PATH=/Users/alvinnovian/.cargo/bin:/usr/bin:/bin:/usr/sbin:/sbin

notice there's no /opt/homebrew/bin, so how do I add that? I follow this step (docker/cli#2115 (comment)) which was originally for docker, but the same step apply . step:

1. edit /etc/ssh/sshd_config and set PermitUserEnvironment yes
2. edit ~/.ssh/environment and add PATH=/usr/bin:/bin:/usr/sbin:/sbin:/opt/homebrew/bin
3. restart sshd (on MacOS: go to System Settings > General > Sharing, toggle the "Remote Login" switch on and off)

and then confirm that wezterm path has been added from the guest machine

$ ssh alvinnovian@mac env | grep PATH
# output: PATH=/Users/alvinnovian/.cargo/bin:/usr/bin:/bin:/usr/sbin:/sbin:/opt/homebrew/bin

if it's already exist, try to connect again:

$ wezterm connect mac

and it works 🎉

---

for reference, I use minimal config for wezterm's config.ssh_domains

config.ssh_domains = {
  {
    name = 'mac',
    remote_address = '<ip-address>',
    username = 'alvinnovian',
  }
}

[fhelmberger]

I ran into the same issue.

I was able get it to work by using the remote_wezterm_path option in the ssh_domains config:

config.ssh_domains = {
  {
    name = "srv",
    remote_address = "srv",
    username = "fhelmberger",
    remote_wezterm_path = "/home/linuxbrew/.linuxbrew/bin/wezterm",
  }
}