diff --git a/source-android/android/build.gradle.backup b/source-android/android/build.gradle.backup
deleted file mode 100644
index f4f2592..0000000
--- a/source-android/android/build.gradle.backup
+++ /dev/null
@@ -1,69 +0,0 @@
-buildscript {
-    repositories {
-        jcenter()
-    }
-
-    dependencies {
-        classpath 'com.android.tools.build:gradle:1.1.0'
-    }
-}
-
-allprojects {
-    repositories {
-        jcenter()
-    }
-}
-
-apply plugin: 'com.android.application'
-
-dependencies {
-    compile fileTree(dir: 'libs', include: ['*.jar'])
-}
-
-//apply plugin: 'android-library'
-
-dependencies {
-    compile 'com.android.support:support-v4:25.3.1'
-}
-
-dependencies {
-    compile 'com.android.support:support-compat:25.3.1'
-}
-
-android {
-    /*******************************************************
-     * The following variables:
-     * - androidBuildToolsVersion,
-     * - androidCompileSdkVersion
-     * - qt5AndroidDir - holds the path to qt android files
-     *                   needed to build any Qt application
-     *                   on Android.
-     *
-     * are defined in gradle.properties file. This file is
-     * updated by QtCreator and androiddeployqt tools.
-     * Changing them manually might break the compilation!
-     *******************************************************/
-
-    compileSdkVersion androidCompileSdkVersion.toInteger()
-
-    buildToolsVersion androidBuildToolsVersion
-
-    sourceSets {
-        main {
-            manifest.srcFile 'AndroidManifest.xml'
-            java.srcDirs = [qt5AndroidDir + '/src', 'src', 'java']
-            aidl.srcDirs = [qt5AndroidDir + '/src', 'src', 'aidl']
-            res.srcDirs = [qt5AndroidDir + '/res', 'res']
-            resources.srcDirs = ['src']
-            renderscript.srcDirs = ['src']
-            assets.srcDirs = ['assets']
-            jniLibs.srcDirs = ['libs']
-       }
-    }
-
-    lintOptions {
-        abortOnError false
-    }
-}
-    apply from: "androidnative.gradle"
-    setAndroidNativePath("/../androidnative.pri");