denoland/deno · error

icon sets are not supported in --hmr mode yet

Error message

icon sets are not supported in --hmr mode yet

What it means

Error "icon sets are not supported in --hmr mode yet" thrown in denoland/deno.

Source

Thrown at cli/tools/desktop.rs:1161

    format!("{}{}", bytes, UNITS[unit])
  } else {
    format!("{:.1}{}", size, UNITS[unit])
  }
}

/// Resolve `icon` (a `.png` or `.icns` path, possibly relative to
/// `initial_cwd`) into an absolute path suitable for `LAUFEY_APP_ICON`, which
/// laufey passes to `-[NSImage initWithContentsOfFile:]` (both formats are
/// accepted, so no conversion is needed).
#[cfg(target_os = "macos")]
fn resolve_hmr_icon_path(
  icon: &crate::args::IconConfig,
  initial_cwd: &Path,
) -> Result<PathBuf, AnyError> {
  let icon_path = match icon {
    crate::args::IconConfig::Single(p) => initial_cwd.join(p),
    crate::args::IconConfig::Set(_) => {
      deno_core::anyhow::bail!("icon sets are not supported in --hmr mode yet")
    }
  };
  if !icon_path.exists() {
    deno_core::anyhow::bail!("icon '{}' not found", icon_path.display());
  }
  match icon_path.extension().and_then(|e| e.to_str()) {
    Some("icns") | Some("png") => {}
    _ => deno_core::anyhow::bail!(
      "icon '{}' must be .icns or .png",
      icon_path.display()
    ),
  }
  Ok(crate::util::fs::canonicalize_path(&icon_path).unwrap_or(icon_path))
}

/// Extract the local URL from a line of dev server output.
fn parse_dev_server_url(line: &str) -> Option<String> {
  let line = console_static_text::ansi::strip_ansi_codes(line);

View on GitHub (pinned to 89f33cbef2)

When it happens

Trigger: Thrown at cli/tools/desktop.rs:1161 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of denoland/deno@89f33cbef2 (2026-08-16). Data as JSON: /api/errors/35e9815ca8df9796. Report an issue: GitHub.