Android Studio构建报错：无法下载bundletool.jar

Hey there! As someone new to Android Studio, this dependency download error can feel frustrating, but let's work through it step by step:

1. Update the Bundletool Version (Most Likely Fix) #

The version 0.1.0-alpha01 is an extremely early, unstable alpha release that's probably no longer hosted in official Maven repositories. Let's switch to a stable, supported version:

• Open your project root directory's build.gradle file (not the one inside your app module).
• Look for the buildscript block's dependencies section. You'll see a line like this:

  classpath 'com.android.tools.build:bundletool:0.1.0-alpha01'
  

• Replace it with a recent stable version (e.g., 1.15.0 – you can check for the latest stable version via Android Studio's dependency suggestions):

  classpath 'com.android.tools.build:bundletool:1.15.0'
  

• Click "Sync Project with Gradle Files" (the elephant icon in the toolbar) to apply changes.

2. Verify Maven Repository Configurations #

Bundletool is hosted on Google's Maven repository, so make sure your project is set to pull from it:

• In the same root build.gradle file, check both the buildscript and allprojects blocks' repositories sections. Ensure they include:

  repositories {
      google()
      mavenCentral()
  }
  

• If google() was missing, add it, then sync the project again.

3. Clear Gradle's Local Cache #

Sometimes corrupted cache files cause download issues. Let's do a deeper clean than just "Invalidate Caches/Restart":

• Close Android Studio.
• Navigate to your local Gradle cache directory:
  • Windows: C:\Users\<YourUsername>\.gradle\caches
  • Mac/Linux: ~/.gradle/caches
• Delete the modules-2 folder (this stores downloaded dependency files).
• Reopen Android Studio and sync the project again.

4. Manual Download (Last Resort) #

If you absolutely need to use 0.1.0-alpha01 (not recommended), you can manually place the jar in Gradle's cache:

• Download the bundletool-0.1.0-alpha01.jar from Google's Maven repository.
• Navigate to ~/.gradle/caches/modules-2/files-2.1/com.android.tools.build/bundletool/0.1.0-alpha01 (create the directories if they don't exist).
• Place the downloaded jar in this folder – you may need to match the existing hash-named subfolder (if one exists) or create a new one with the correct hash for the file.

A quick tip for future projects: Stick to stable release versions of dependencies whenever possible, as alpha/beta versions are often removed or replaced once stable builds are available.

内容的提问来源于stack exchange，提问作者Daniel Rika