AAPT: error: failed writing to R.txt Android resources linking failed ':app:processDebugResources' Android Studio 4.0.1 (Aug 2020)

2 min readAug 12, 2020
Gradle Build Failed at ':app:processDebugResources'

Previously, we talked about this version of Android Studio has an issue of Launcher Activity (See here). Now we got another issue about Android Studio 4.0.1, which is Gradle Build Process failed at ':app:processDebugResources'

This issue will produce log like:

AGPBI: {“kind”:”error”,”text”:”Android resources linking failed” …..

AAPT: Error: failed writing to ‘…\app\build\intermediates\runtim_symbol_list\debug\R.txt’: …

Error log

The cause of this issue is all about the combination of Android Gradle Plugin Version and Gradle Version.

The problematic combination I experience is

Android Gradle Plugin Version:4.0.1

Gradle Version: 6.1.1

Problematic combination of Android Gradle Plugin Version and Gradle Version

To workaround this problem, we have to lower Android Gradle Tool version and Gradle Version.

I tested below combination that works.


Android Gradle Plugin Version: 3.6.1

Gradle Version: 6.0

Android Gradle Plugin Version: 3.6.1, Gradle Version: 6.0

To change this setting:

  1. Select File>Project Structure.
  2. Type in (3.6.3) the Android Gradle Plugin Version.
  3. Type/select (6.0) from dropdown menu the Gradle Version.
  4. Hit OK to Save.

That’s it.

Happy coding.

Let me know if you find better solution or approach in the comment section below. ;)

Find me at Twitter @rick3817




Hi this is Rick from Hong Kong. I am a native iOS and Android mobile developer and also a tech enthusiast. Find me on Twitter https://twitter.com/rick3817