Upload failed You need to use a different version code for your APK because you already have one with version code 2

For people who use Android Studio the problem may be solved by editing versionCode and versionName in build.gradle instead of AndroidManifest.xml.

e.g.

defaultConfig {
    applicationId "com.my.packageId"
    minSdkVersion 15
    targetSdkVersion 22
    versionCode 2      <-- change this
    versionName "2.0"  <-- change this
}