问BlueStacks安装失败旧版sdk错误

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<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
package="com.example.demoww"
android:versionCode="1"
android:versionName="1.0" >

<uses-sdk
    android:minSdkVersion="14"
    android:targetSdkVersion="14" />

<application
    android:allowBackup="true"
    android:icon="@drawable/earth"
    android:theme="@style/AppTheme" >
    <activity
        android:name=".LoadScreen"
        android:label="@string/Linking_players" >
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />

            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
    <activity
        android:name=".SignUp"
        android:label="@string/Signup" >
    </activity>
    <activity android:name=".MainActivity" >
        <meta-data
            android:name="android.support.UI_OPTIONS"
            android:value="splitActionBarWhenNarrow" />
    </activity>
    <activity android:name=".suggestedfriends" >
        <meta-data
            android:name="android.support.UI_OPTIONS"
            android:value="splitActionBarWhenNarrow" />
    </activity>
    <activity android:name=".search" >
        <meta-data
            android:name="android.support.UI_OPTIONS"
            android:value="splitActionBarWhenNarrow" />
    </activity>
    <activity android:name=".requests" >
        <meta-data
            android:name="android.support.UI_OPTIONS"
            android:value="splitActionBarWhenNarrow" />
    </activity>
    <activity android:name=".raul_profile" >
        <meta-data
            android:name="android.support.UI_OPTIONS"
            android:value="splitActionBarWhenNarrow" />
    </activity>
    <activity android:name=".raul_message" >
        <meta-data
            android:name="android.support.UI_OPTIONS"
            android:value="splitActionBarWhenNarrow" />
    </activity>
    <activity android:name=".profile" >
        <meta-data
            android:name="android.support.UI_OPTIONS"
            android:value="splitActionBarWhenNarrow" />
    </activity>
    <activity android:name=".messages" >
        <meta-data
            android:name="android.support.UI_OPTIONS"
            android:value="splitActionBarWhenNarrow" />
    </activity>
    <activity android:name=".friendslist" >
        <meta-data
            android:name="android.support.UI_OPTIONS"
            android:value="splitActionBarWhenNarrow" />
    </activity>

</application>
<!-- To access Google+ APIs: -->
<uses-permission android:name="android.permission.INTERNET" />

<!--
 To retrieve OAuth 2.0 tokens or invalidate tokens to disconnect a user. This disconnect
 option is required to comply with the Google+ Sign-In developer policies







-->
<uses-permission android:name="android.permission.USE_CREDENTIALS" />

<!-- To retrieve the account name (email) as part of sign-in: -->
<uses-permission android:name="android.permission.GET_ACCOUNTS" />

<!-- To auto-complete the email text field in the login form with the user's emails -->
<uses-permission android:name="android.permission.READ_PROFILE" />
<uses-permission android:name="android.permission.READ_CONTACTS" />

</manifest>