title: unable to update published android app apk on google play
body: <p>I'm trying to update my published android app by uploading another apk from appRelase then edit release but when i upload the apk it says</p>
  
  <blockquote>
    <p>couldn't save your changes
    <a href="https://i.stack.imgur.com/ZVUsU.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/ZVUsU.png" alt="enter image description here"></a></p>
  </blockquote>
  
  <pre><code>android {
  compileSdkVersion 29
  buildToolsVersion "29.0.0"
  defaultConfig {
      applicationId "com.techno.kashfrohaanyappmahkotf"
      minSdkVersion 17
      targetSdkVersion 29
      versionCode 2
      versionName "2.0"
      multiDexEnabled true
      vectorDrawables.useSupportLibrary = true
      testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
      ndk.abiFilters 'armeabi-v7a', 'arm64-v8a', 'x86', 'x86_64'
  }
  
  compileOptions {
      sourceCompatibility JavaVersion.VERSION_1_8
      targetCompatibility JavaVersion.VERSION_1_8
  }
  buildTypes {
      release {
          minifyEnabled false
          proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
      }
  }
  }
  </code></pre>