添加Glide库后Android出现Unable to merge dex错误求解决方案

Hey there, I see you're hitting that annoying DexArchiveMergerException after adding Glide, even after cleaning and rebuilding the project. Let's break down the possible fixes based on your provided build.gradle:

1. 统一Support Library版本（最可能的原因） #

Looking at your dependencies, you have a mix of Support Library versions: most are 26.1.0, but com.android.support:support-annotations is on 27.1.1. Version mismatches in support libraries are a common culprit for dex merge errors because they can introduce conflicting classes.

Fix: Update the annotations dependency to match your other support library version:

implementation 'com.android.support:support-annotations:26.1.0'

Make sure all your support library dependencies use the same version number across the board.

2. 启用MultiDex #

If your app's total method count exceeds the 65k limit (even after adding Glide), you'll need to enable MultiDex to handle the extra methods.

Steps to enable:

• Add multiDexEnabled true to your defaultConfig block:

  defaultConfig {
      // ... existing config
      multiDexEnabled true
  }
  

• Add the MultiDex dependency to your dependencies block:

  implementation 'com.android.support:multidex:1.0.3'
  

• If you have a custom Application class, make it extend MultiDexApplication instead of Application; if not, update your AndroidManifest.xml to use it:

  <application
      android:name="android.support.multidex.MultiDexApplication"
      <!-- ... other attributes -->
  >
  

3. 清理深层缓存 #

Sometimes a standard clean/rebuild isn't enough. Try these steps to wipe all cached files:

• Close Android Studio
• Delete the .gradle folder in your project root
• Delete the build folder inside your app module
• Reopen Android Studio, sync your project with Gradle files, then rebuild

4. 规范依赖声明 #

You're using compile for some dependencies (like Volley and support-v13) – while this still works, it's deprecated. Switch to implementation for consistency, which helps avoid unintended dependency leaks:

implementation 'com.mcxiaoke.volley:library:1.0.19'
implementation 'com.android.support:support-v13:26.1.0'

Try these fixes one by one (starting with the version unification, since that's the most likely issue) and see which resolves your problem.

内容的提问来源于stack exchange，提问作者akkk