rust-tools.dap Port Configuration Not Working

[ddxtanx]

I'm currently trying to setup Rust debugging using the codelldb setup listed in the wiki. However, whenever I try to debug a file codelldb exits with status code 1 with the error being listed as "Couldn't connect to 127.0.0.1:${port}: ECONNREFUSED". Is this a problem with how rust-tools.dap is setup or are there configuration steps that I should do to get the port variable filled in? Thank you so much!

[ddxtanx]

I can confirm it is the resolution of ${port} that is making the configuration fail. Manually entering the configuration like

code_lldb_port_num = 13000

return {
  lldb = {
    type = 'server',
    executable = { 
      command = '/Users/{my name}/.vscode/extensions/vadimcn.vscode-lldb-1.8.1/adapter/codelldb',
      args = {"--port", code_lldb_port_num}-- adjust as needed, must be absolute path
    },
    name = 'lldb',
    host = '127.0.0.1',
    port = code_lldb_port_num
  }
}

makes the DAP setup work perfectly.

[juhaku]

@ddxtanx How did you come up with that port number 13000? Is that constant? or can anyone define whatever port one wish?

[ddxtanx]

@juhaku It's just a random port I chose! The only important part is that it is defined in the lua file, whereas in the rust-tools.dap file, it is defined as an unresolved "${port}".

[juhaku]

Awesome, I update my configs as well.

[AlexSWall]

I get the same issue, and resolved by manually setting the port.

[simrat39]

Works for me with ${port}, might be an os thing? not sure. Anyways, manually set the port if it doesn't work for some reason

[dallas1287]

Does just manually setting the port actually work on Windows? I've done the manual setting and it almost works but the debugger just rejects any breakpoints