Android Studio Arctic Fox下Gradle任务:app:dexBuilderDebug执行失败（AccessDeniedException）的自动修复方案咨询

Hey, sorry to hear you're stuck with this annoying permission error stopping your builds—manually deleting directories every time is such a hassle. Let's get this sorted with automatic fixes that work even when running as admin:

1. Add a Custom Gradle Clean Task #

You can create a Gradle task that automatically deletes the problematic desugar_graph directory right before the dexBuilderDebug task runs. This ensures the directory is fresh and unlocked each time you build.

For Groovy (build.gradle): #

// Task to clean the desugar graph output directory
task cleanDesugarCache(type: Delete) {
    delete fileTree(dir: "${project.buildDir}/intermediates/desugar_graph/debug/out")
}

// Hook the clean task to run before dexBuilderDebug
tasks.named('dexBuilderDebug').configure {
    dependsOn cleanDesugarCache
}

For Kotlin DSL (build.gradle.kts): #

val cleanDesugarCache by tasks.registering(Delete::class) {
    delete(fileTree("${project.buildDir}/intermediates/desugar_graph/debug/out"))
}

tasks.named("dexBuilderDebug") {
    dependsOn(cleanDesugarCache)
}

Just drop this into your app module's build script, and Gradle will handle the cleanup automatically on every debug build.

2. Disable Incremental Desugaring #

This permission issue often ties to incremental desugaring's cached files getting locked. Try disabling incremental desugaring by adding this line to your project's gradle.properties file:

android.enableIncrementalDesugaring=false

This makes Gradle rebuild the desugar output from scratch each time instead of reusing cached files, which avoids the lock conflict. Note: It might add a few seconds to your build time, but it's a reliable fix.

3. Turn Off Gradle's File System Watching #

Sometimes Gradle's file system watcher locks files in the build directory. Disable it by adding this to gradle.properties:

org.gradle.vfs.watch=false

This prevents Gradle from holding locks on build artifacts, which can resolve the access denied error.

Bonus Checks #

• Antivirus/Security Tools: Make sure your antivirus or Windows Defender isn't scanning your project directory—these tools often lock files temporarily. Add your AndroidProjects folder to the exclusion list.
• Directory Permissions: Double-check that your user account has full read/write permissions for the C:\Users\Roman\AndroidDevelopment\AndroidProjects\Project directory (right-click > Properties > Security > Edit > ensure your user has Full Control).

If you want a quick Android Studio setting tweak, you can also enable automatic build cleanup:

1. Go to File > Settings > Build, Execution, Deployment > Compiler
2. Check Clear output directory on build (if available) and Build project automatically
3. Hit Apply and OK

内容的提问来源于stack exchange，提问作者Roman Popov