Error - Android resource linking failed (AAPT2 27.0.3 Daemon #0)

Question

I have this error

I am try reinstall android studio and remove .gradle folder , any solution please?

    Error:FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':app:processDebugResources'.
> Android resource linking failed (AAPT2 27.0.3 Daemon #0)
  Command: C:\javasdk\build-tools\27.0.3\aapt2.exe link -I\
          C:\javasdk\platforms\android-26\android.jar\
          --manifest\



  C:\Users\Jalal D\.gradle\caches\transforms-1\files-1.1\fonticon-0.1.8.aar\2b09376fc14469ba65fc8e4d85c2eed1\res\values\values.xml:19:5-25:25: AAPT: error: resource android:attr/fontVariationSettings not found.

  C:\Users\Jalal D\.gradle\caches\transforms-1\files-1.1\fonticon-0.1.8.aar\2b09376fc14469ba65fc8e4d85c2eed1\res\values\values.xml:19:5-25:25: AAPT: error: resource android:attr/ttcIndex not found.

  error: failed linking references.

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

* Get more help at https://help.gradle.org

BUILD FAILED in 1m 3s

Answer 1

The Android resource linking failed error can also appear if you have an error in any of your XML resources. In my case I was using the following line twice in one of my XML drawables in drawable folder:

<?xml version="1.0" encoding="UTF-8"?>
<?xml version="1.0" encoding="UTF-8"?>

I removed the duplicate line and the error disappeared. The error was a bit misleading:

Android resource linking failed Output: /Users/johndoe/Desktop/myapp/app/src/main/res/layout/activity_main.xml:2: error: resource drawable/bg_main (aka com.example.myproject:drawable/bg_main) not found.

According to the above error, the first thing you need to do is to proof read all the drawable resources that are accessed in the activity_main because the chances are higher that you will find the error. In the worst case scenario you might end up checking all your resource files.

Answer 2

Had exactly the same problem. Solved it by doing the following: Searching for and replacing com.android.support:support-v4:+ with com.android.support:support-v4:27.1.0 in the platform/android directory.

Also I had to add the following code to the platforms/android/app/build.gradle and platforms/android/build.gradle files:

configurations.all {
resolutionStrategy {
    force 'com.android.support:support-v4:27.1.0'
}}

Edited to answer "Where is this com.android.support:support-v4:+ setting ?" ...

The setting will probably(in this case) be in one of your plugin's .gradle file in the platform/android/ directory, for example in my case it was the starter-barcodescanner plugin so just go through all your plugins .gradle files :

Double check the platforms/android/build.gradle file.

Hope this helps.

Answer 3

Note: Android Studio spits out a load of crazy errors like this if you upgrade the support libraries to 28.0.0 and your compileSdkVersion is not 28 also.

Answer 4

Problem fixed for me by replacing compileSdkVersion 23 with compileSdkVersion 28 in build.gradle (Project: build).