Failure [INSTALL_FAILED_OLDER_SDK] in Android Studio?

Question

I import a project in my Android Studio and get me bellow error :

pkg: /data/local/tmp/mindmine.com.welcometol
Failure [INSTALL_FAILED_OLDER_SDK]

And Bellow is my build.gradle , I change minSdkVersion 21 to minSdkVersion 8 but get me error yet:

apply plugin: 'com.android.application'

android {
    compileSdkVersion 21
    buildToolsVersion "21.1.2"

    defaultConfig {
        applicationId "mindmine.com.welcometol"
        minSdkVersion 21
        targetSdkVersion 21
        versionCode 1
        versionName "1.0"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    compile 'com.android.support:recyclerview-v7:21.0.3'
    compile 'com.android.support:cardview-v7:21.0.3'
}

Answer 1

I think you change minSdkVersion 21 to minSdkVersion 8 in Manifest

Change it in your Gradle

defaultConfig {
        applicationId "mindmine.com.welcometol"
        minSdkVersion *<Put yoru min SDK here>*
        targetSdkVersion 21
        versionCode 1
        versionName "1.0"
    }