Failed to execute aapt

While building APK file got “Failed to execute aapt” error.
Please find below screenshots for the same.

Looking forward for your response!!

What Gradle version and Android SDK are you using for build?

App.setPreference(‘android-minSdkVersion’, ‘16’);

App.setPreference(‘android-targetSdkVersion’, ‘28’);


Can you please let us know where i am wrong?

Does your android/build.gradle look anything close to this?
You can raise your minimum sdk the minimum version to 21 (Android 5) unless you still build for very old devices (which anyway don’t support TLS1.1 so they don’t do much anymore).
I’d also suggest to use gradle 4.10 instead.
‘defaultBuildToolsVersion’ has to be latest or close to latest version.

/* Licensed to the Apache Software Foundation (ASF) under one
   or more contributor license agreements.  See the NOTICE file
   distributed with this work for additional information
   regarding copyright ownership.  The ASF licenses this file
   to you under the Apache License, Version 2.0 (the
   "License"); you may not use this file except in compliance
   with the License.  You may obtain a copy of the License at

   Unless required by applicable law or agreed to in writing,
   software distributed under the License is distributed on an
   KIND, either express or implied.  See the License for the
   specific language governing permissions and limitations
   under the License.

// Top-level build file where you can add configuration options common to all sub-projects/modules.

buildscript {
    repositories {
        maven {
            url ""
    dependencies {

        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
        classpath ''

allprojects {
    repositories {
        maven {
            url ""
    //This replaces w.r.t. build settings
    project.ext {
      defaultBuildToolsVersion="27.0.1" //String
      defaultMinSdkVersion=19 //Integer - Minimum requirement is Android 4.4
      defaultTargetSdkVersion=27 //Integer - We ALWAYS target the latest by default
      defaultCompileSdkVersion=27 //Integer - We ALWAYS compile with the latest by default

task clean(type: Delete) {
    delete rootProject.buildDir