Manifest merger failed : uses-sdk:minSdkVersion 8 cannot be smaller

Question

The problem is..

Error:Execution failed for task ':app:processDebugManifest'. 

Manifest merger failed : uses-sdk:minSdkVersion 8 cannot be smaller than version L declared in library com.android.support:support-v4:21.0.0-rc1

The code in build.gradle

   apply plugin: 'android'  android {     compileSdkVersion 19     buildToolsVersion "20.0.0"      defaultConfig {         applicationId "com.androidexample.gcm"         minSdkVersion 8         targetSdkVersion 16     }      buildTypes {         release {             runProguard false             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt'         }     } }  dependencies {     compile 'com.android.support:support-v4:+'     compile 'com.google.android.gms:play-services:+'     //compile 'com.android.support:support-v4:20.0.0'     //compile 'com.google.android.gms:play-services:5.0.77'  } 

Code in the AndroidManifest is ..

 <?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android"     package="com.androidexample.gcm"     android:versionCode="1"     android:versionName="1.0" >      <!-- GCM requires Android SDK version 2.2 (API level 8) or above. -->     <uses-sdk         android:minSdkVersion="8"         android:targetSdkVersion="16" />      <!-- Main activity. -->     <application         android:name="com.androidexample.gcm.Controller"         android:icon="@drawable/ic_launcher"         android:label="@string/app_name" >         <!-- Register Activity -->         <activity             android:name="com.androidexample.gcm.RegisterActivity"             android:label="@string/app_name" >             <intent-filter>                 <action android:name="android.intent.action.MAIN" />                 <category android:name="android.intent.category.LAUNCHER" />             </intent-filter>             <intent-filter>                 <action android:name="android.intent.action.VIEW" />                 <action android:name="android.intent.action.DELETE" />                 <category android:name="android.intent.category.DEFAULT" />                   <data android:scheme="com.idrivecare.familypro" />             </intent-filter>         </activity>           <!-- Main Activity -->         <activity             android:name="com.androidexample.gcm.MainActivity"             android:configChanges="orientation|keyboardHidden"             android:label="@string/app_name" >         </activity>          <receiver             android:name="com.google.android.gcm.GCMBroadcastReceiver"             android:permission="com.google.android.c2dm.permission.SEND" >             <intent-filter>                  <!-- Receives the actual messages. -->                 <action android:name="com.google.android.c2dm.intent.RECEIVE" />                 <!-- Receives the registration id. -->                 <action android:name="com.google.android.c2dm.intent.REGISTRATION" />                  <category android:name="com.androidexample.gcm" />             </intent-filter>         </receiver>          <service android:name="com.androidexample.gcm.GCMIntentService" />         <meta-data android:name="com.google.android.gms.version" android:value="@integer/google_play_services_version" />     </application>      <!-- GCM connects to Internet Services. -->     <uses-permission android:name="android.permission.INTERNET" />      <!-- GCM requires a Google account. -->     <uses-permission android:name="android.permission.GET_ACCOUNTS" />      <!-- Keeps the processor from sleeping when a message is received. -->     <uses-permission android:name="android.permission.WAKE_LOCK" />      <!-- Creates a custom permission so only this app can receive its messages. -->     <permission         android:name="com.androidexample.gcm.permission.C2D_MESSAGE"         android:protectionLevel="signature" />      <uses-permission android:name="com.androidexample.gcm.permission.C2D_MESSAGE" />      <!-- This app has permission to register and receive data message. -->     <uses-permission android:name="com.google.android.c2dm.permission.RECEIVE" />      <!-- Network State Permissions to detect Internet status -->     <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />      <!-- Permission to vibrate -->     <uses-permission android:name="android.permission.VIBRATE" />  </manifest> 

Thank you sir..

Answer 1

The problem is because your app min sdk is 8 and you selected to use the Google Plus services that requires min sdk 9.

Change the line "minSdkVersion 8" to "minSdkVersion 9". So, save it.

After, Clean Project and Rebuild it.

Answer 2

If you use

'com.android.support:support-v4:+' 

It will suppose it can use 21.x since is the latest version (but not compatible with target less than L)

Change it to

'com.android.support:support-v4:20.+' 

So it will download the latest 20.x version