android - Failure [INSTALL_FAILED_VERSION_DOWNGRADE] on real device -

i'm trying run custom launcher3 apk android studio oneplus mobile phone.its api level 23. app works fine level 22 getting error failure [install_failed_version_downgrade] on api level 23 , shows popup uninstall existing app. , infect apk not installed. , when tried pressing ok button shows delete failed internal error . i'm not getting solution. please me. tried change versioncode, versionname api level etc. no solution. here gradle file

apply plugin: 'com.android.application'    android {      compilesdkversion 23      buildtoolsversion "23.0.2"      defaultconfig {          applicationid "com.android.launcher3"          minsdkversion 14          targetsdkversion 23          versioncode 1          versionname '1.0'      }      buildtypes {          release {              minifyenabled false              proguardfiles getdefaultproguardfile('proguard-android.txt'), 'proguard-rules.pro'          }      }      productflavors {      }  }    dependencies {      compile filetree(include: ['*.jar'], dir: 'libs')      compile project(':wallpaperpick')      compile 'com.github.yukuku:ambilwarna:2.0.1'      compile 'com.android.support:support-v4:24.0.0-alpha1'  }