vscodehtml: Failed to find project root, language server won't start.

[gnietto]

I feel I'm missing something very basic here.
I'm using https://github.com/hrsh7th/vscode-langservers-extracted LSP servers.
The hrsh7th's CSS LSP server is working okay, but HTML LSP server shows the error message: Failed to find project root, language server won't start.

My :ALEInfo is:

Current Filetype: html
Available Linters: ['alex', 'angular', 'cspell', 'eslint', 'fecs', 'htmlhint', 'proselint', 'stylelint', 'tidy', 'vscodehtml', 'writegood']
   Linter Aliases:
'angular' -> ['angular-language-server']
'writegood' -> ['write-good']
  Enabled Linters: ['vscodehtml']
  Ignored Linters: []
 Suggested Fixers: 
  'fecs' - Apply fecs format to a file.
  'html-beautify' - Fix HTML files with html-beautify from js-beautify.
  'prettier' - Apply prettier to a file.
  'remove_trailing_lines' - Remove all blank lines at the end of a file.
  'rustywind' - Sort Tailwind CSS classes
  'tidy' - Fix HTML files with tidy.
  'trim_whitespace' - Remove all trailing whitespace characters at the end of every line.
 Linter Variables:

 Global Variables:

let g:ale_cache_executable_check_failures = v:null
let g:ale_change_sign_column_color = 0
let g:ale_command_wrapper = v:null
let g:ale_completion_delay = 100
let g:ale_completion_enabled = 1
let g:ale_completion_max_suggestions = 50
let g:ale_disable_lsp = 0
let g:ale_echo_cursor = 1
let g:ale_echo_msg_error_str = 'Error'
let g:ale_echo_msg_format = '%code: %%s'
let g:ale_echo_msg_info_str = 'Info'
let g:ale_echo_msg_warning_str = 'Warning'
let g:ale_enabled = 1
let g:ale_fix_on_save = 0
let g:ale_fixers = {'json': ['prettier'], 'html': ['prettier'], 'javascript': ['prettier'], 'css': ['prettier']}
let g:ale_history_enabled = 1
let g:ale_history_log_output = 1
let g:ale_keep_list_window_open = 0
let g:ale_lint_delay = 200
let g:ale_lint_on_enter = 1
let g:ale_lint_on_filetype_changed = 1
let g:ale_lint_on_insert_leave = 1
let g:ale_lint_on_save = 1
let g:ale_lint_on_text_changed = 'normal'
let g:ale_linter_aliases = {}
let g:ale_linters = {'typescript': ['tsserver'], 'json': ['vscodejson'], 'html': ['vscodehtml'], 'rust': ['analyzer'], 'javascript': ['tsserver', 'vscodeeslint'], 'css': ['vscodecss']}
let g:ale_linters_explicit = 1
let g:ale_linters_ignore = {}
let g:ale_list_vertical = 0
let g:ale_list_window_size = 10
let g:ale_loclist_msg_format = '%code: %%s'
let g:ale_max_buffer_history_size = 20
let g:ale_max_signs = -1
let g:ale_maximum_file_size = v:null
let g:ale_open_list = 0
let g:ale_pattern_options = v:null
let g:ale_pattern_options_enabled = v:null
let g:ale_root = {}
let g:ale_set_balloons = 1
let g:ale_set_highlights = 1
let g:ale_set_loclist = 1
let g:ale_set_quickfix = 0
let g:ale_set_signs = 1
let g:ale_sign_column_always = 0
let g:ale_sign_error = '>>'
let g:ale_sign_info = '--'
let g:ale_sign_offset = 1000000
let g:ale_sign_style_error = '>>'
let g:ale_sign_style_warning = '--'
let g:ale_sign_warning = '--'
let g:ale_sign_highlight_linenrs = 0
let g:ale_statusline_format = v:null
let g:ale_type_map = {}
let g:ale_use_neovim_diagnostics_api = 0
let g:ale_use_global_executables = v:null
let g:ale_virtualtext_cursor = 'all'
let g:ale_warn_about_trailing_blank_lines = 1
let g:ale_warn_about_trailing_whitespace = 1
 LSP Error Messages:

(Errors for vscodehtml)
Failed to find project root, language server won't start.
  Command History:

[w0rp]

@gnietto Raise an issue for this with what your project looks like. There may be a file in your project we can use to detect the project root automatically.

[gnietto]

I feel I'm missing something very basic here

@w0rp Effectively, that was the case as a new user.
After testing my projects and reading ALE code and documentation, I discovered that vscodehtml threw that message because I did not initialize the project with git init.
For me, ALE is a great tool so congratulations to creators and maintainers and thanks for the quick response.
I have other questions about ALE's (auto)completion although I will ask them in another thread of discussions.