tauri-apps/tauri · error

Java not found in PATH, default Android Studio Java installa

Error message

Java not found in PATH, default Android Studio Java installation not found at {default_java_home} and JAVA_HOME environment variable not set. Please install Java before proceeding

What it means

Error "Java not found in PATH, default Android Studio Java installation not found at {default_java_home} and JAVA_HOME environment variable not set. Please install Java before proceeding" thrown in tauri-apps/tauri.

Source

Thrown at crates/tauri-cli/src/mobile/android/mod.rs:489

  ensure_sdk(non_interactive)?;
  ensure_ndk(non_interactive)?;
  Ok(())
}

fn ensure_java() -> Result<()> {
  if std::env::var_os("JAVA_HOME").is_none() {
    #[cfg(windows)]
    let default_java_home = "C:\\Program Files\\Android\\Android Studio\\jbr";
    #[cfg(target_os = "macos")]
    let default_java_home = "/Applications/Android Studio.app/Contents/jbr/Contents/Home";
    #[cfg(target_os = "linux")]
    let default_java_home = "/opt/android-studio/jbr";

    if Path::new(default_java_home).exists() {
      log::info!("Using Android Studio's default Java installation: {default_java_home}");
      std::env::set_var("JAVA_HOME", default_java_home);
    } else if which::which("java").is_err() {
      crate::error::bail!("Java not found in PATH, default Android Studio Java installation not found at {default_java_home} and JAVA_HOME environment variable not set. Please install Java before proceeding");
    }
  }

  Ok(())
}

fn ensure_sdk(non_interactive: bool) -> Result<()> {
  let android_home = std::env::var_os("ANDROID_HOME")
    .or_else(|| std::env::var_os("ANDROID_SDK_ROOT"))
    .map(PathBuf::from);
  if !android_home.as_ref().is_some_and(|v| v.exists()) {
    log::info!(
      "ANDROID_HOME {}, trying to locate Android SDK...",
      if let Some(v) = &android_home {
        format!("not found at {}", v.display())
      } else {
        "not set".into()
      }

View on GitHub (pinned to 52e4b6e71d)

When it happens

Trigger: Thrown at crates/tauri-cli/src/mobile/android/mod.rs:489 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of tauri-apps/tauri@52e4b6e71d (2026-08-20). Data as JSON: /api/errors/214b64d160ace85d. Report an issue: GitHub.