Android Studio Install failed older sdk

Question

im using Android Studio since a few days! I want to use my phone(nexus 5 android version:4.4.3) as app-tester and debugger. I've set my phone in target Device. There aren't usb-driver problem. The device is recognized by PC. Ok!Now i've this problem:

Waiting for device.
Target device: lge-nexus_5-04e2b217251fce16
Uploading file
    local path: C:\Users\chaw359\AndroidStudioProjects\UGHO\app\build\outputs\apk\app-debug.apk
    remote path: /data/local/tmp/com.example.chaw359.ugho
Installing com.example.chaw359.ugho
DEVICE SHELL COMMAND: pm install -r "/data/local/tmp/com.example.chaw359.ugho"
pkg: /data/local/tmp/com.example.chaw359.ugho
Failure [INSTALL_FAILED_OLDER_SDK]

My app is a simple "Hello World", nothing problem with code! I want to understand why the installation fails!

Answer 1

You can modified your build.gradle

According to me:

modified the minSdkVersion low.

defaultConfig {
        applicationId "com.example.myapplication1"
        minSdkVersion 11
        targetSdkVersion 21
        versionCode 1
        versionName "1.0"
    }

Answer 2

-Go to built.gradle(module:app) inside gradle scripts

-Check the SDK or API version of the virtual device or the real device that you
are using

-set the the minSdkVersion to be less than or equal to that of your devices API/SDK version