Buildozer编译APK失败，咨询编译所需缺失项

Alright, let's walk through the most likely missing pieces that are causing your buildozer android debug command to fail, even after the initial dependency downloads finish:

• Properly Configured buildozer.spec File
  This is the #1 culprit more often than not. Make sure:

  • Your requirements line includes all the libraries your app uses (e.g., requirements = python3,kivy,pillow if you're using Pillow for images). Don't forget any third-party packages you've installed via pip.
  • The android.api, android.ndk, and android.sdk versions are compatible. For most modern builds, aim for API level 33, NDK version 25.x, and a matching SDK version—mismatches here will break compilation instantly.
  • You've added necessary android.permissions if your app needs them (e.g., android.permissions = INTERNET,WRITE_EXTERNAL_STORAGE for network access or file saving).

• System-Level Dependencies
  Buildozer relies on a bunch of system tools to compile the APK:

  • On Linux: Install build-essential, git, python3-pip, openjdk-17-jdk (Android SDK now requires Java 17), zlib1g-dev, and libncurses5-dev via your package manager.
  • On Windows (using WSL): Ensure you're running Ubuntu 20.04 or newer, install the same Linux dependencies above, and avoid Chinese characters/spaces in your project file paths—these trip up Buildozer constantly.
  • On macOS: Install Xcode Command Line Tools (xcode-select --install), plus Homebrew packages like python and openjdk@17.

• Up-to-Date Buildozer & Clean Environment

  • Outdated Buildozer versions often have compatibility bugs. Run pip install --upgrade buildozer to get the latest stable release.
  • If you've tried compiling before and hit errors, delete the .buildozer folder in your project directory—it stores cached dependencies that might be corrupted. Then re-run buildozer android debug to start fresh.

• Network & Cache Fixes

  • Partial or corrupted dependency downloads can break compilation. Delete the .buildozer/android/platform folder and let Buildozer re-download the SDK/NDK files from scratch.
  • If you're in a region with restricted access to Google's servers, add a domestic SDK mirror to your buildozer.spec (look for the android.sdk_repository line and uncomment/update it to a trusted mirror).

• Code Compatibility Checks

  • Make sure your main.py doesn't use any Python libraries or features that aren't supported on Android (e.g., desktop-only GUI frameworks, low-level system calls that don't translate).
  • Verify your code is compatible with the Python version Buildozer is using (check the python.version line in your spec file—most builds use 3.9+ now).

内容的提问来源于stack exchange，提问作者Djaber Berrian