No completions appear in VS Code even after lua5.4 installation

[EmilyGraceSeville7cf]

Xmake Version

v2.7.9+20230706

Operating System Version and Architecture

Linux 22.04 Ubuntu

Describe Bug

Expected Behavior

Completions expected to exist after just this extension installation.

Project Configuration

From this tutorial.

Additional Information and Error Logs

Lua: 5.4.4
My Nushell config:

# Nushell Environment Config File
#
# version = 0.79.0

def create_left_prompt [] {
    mut home = ""
    try {
        if $nu.os-info.name == "windows" {
            $home = $env.USERPROFILE
        } else {
            $home = $env.HOME
        }
    }

    let dir = ([
        ($env.PWD | str substring 0..($home | str length) | str replace --string $home "~"),
        ($env.PWD | str substring ($home | str length)..)
    ] | str join)

    let path_color = (if (is-admin) { ansi red_bold } else { ansi green_bold })
    let separator_color = (if (is-admin) { ansi light_red_bold } else { ansi light_green_bold })
    let path_segment = $"($path_color)($dir)"

    $path_segment | str replace --all (char path_sep) $"($separator_color)/($path_color)"
}

def create_right_prompt [] {
    let time_segment_color = (ansi magenta)

    let time_segment = ([
        (ansi reset)
        $time_segment_color
        (date now | date format '%m/%d/%Y %r')
    ] | str join | str replace --all "([/:])" $"(ansi light_magenta_bold)${1}($time_segment_color)" |
        str replace --all "([AP]M)" $"(ansi light_magenta_underline)${1}")

    let last_exit_code = if ($env.LAST_EXIT_CODE != 0) {([
        (ansi rb)
        ($env.LAST_EXIT_CODE)
    ] | str join)
    } else { "" }

    ([$last_exit_code, (char space), $time_segment] | str join)
}

# Use nushell functions to define your right and left prompt
let-env PROMPT_COMMAND = {|| create_left_prompt }
let-env PROMPT_COMMAND_RIGHT = {|| create_right_prompt }

# The prompt indicators are environmental variables that represent
# the state of the prompt
let-env PROMPT_INDICATOR = {|| "> " }
let-env PROMPT_INDICATOR_VI_INSERT = {|| ": " }
let-env PROMPT_INDICATOR_VI_NORMAL = {|| "> " }
let-env PROMPT_MULTILINE_INDICATOR = {|| "::: " }

# Specifies how environment variables are:
# - converted from a string to a value on Nushell startup (from_string)
# - converted from a value back to a string when running external commands (to_string)
# Note: The conversions happen *after* config.nu is loaded
let-env ENV_CONVERSIONS = {
  "PATH": {
    from_string: { |s| $s | split row (char esep) | path expand --no-symlink }
    to_string: { |v| $v | path expand --no-symlink | str join (char esep) }
  }
  "Path": {
    from_string: { |s| $s | split row (char esep) | path expand --no-symlink }
    to_string: { |v| $v | path expand --no-symlink | str join (char esep) }
  }
}

# Directories to search for scripts when calling source or use
#
# By default, <nushell-config-dir>/scripts is added
let-env NU_LIB_DIRS = [
    ($nu.default-config-dir | path join 'scripts')
]

# Directories to search for plugin binaries when calling register
#
# By default, <nushell-config-dir>/plugins is added
let-env NU_PLUGIN_DIRS = [
    ($nu.default-config-dir | path join 'plugins')
]

let-env XMAKE_ROOTDIR = "/home/emilyseville7cfg/.local/bin"
let-env XMAKE_PROGRAM_DIR = "/home/emilyseville7cfg/.local/share/xmake"
let-env PATH = ($env.PATH | append $env.XMAKE_ROOTDIR)

I suspect the issue that I use Nushell as a login one. 🤔 I'll check whether it's the correct assumption.

[EmilyGraceSeville7cf]

Everything works fine with Bash set as the default shell... What should I do in this case?