android Installation error: INSTALL_FAILED_VERSION_DOWNGRADE

http://www.apkbus.com/android-114019-1-1.html

 

提高 AndroidManifest.xml中的manifest的android:versionCode

xmlns:android="http://schemas.android.com/apk/res/android"
          package="string"
          android:sharedUserId="string"
          android:sharedUserLabel="string resource" 
          android:versionCode="integer"
          android:versionName="string"
          android:installLocation=["auto" | "internalOnly" | "preferExternal"] >
    . . .

android:versionCode选项，如果android:versionCode="40012" 改成android:versionCode="40013"