failed to find target android-7 Please install the missing platform

用android-studio import 一个projects出现问题

Failed to refresh Gradle project 'demo'

Cause: failed to find target android-7

 Please install the missing platform from the Android SDK Manager.

解决：

（1）

  项目的build.gradle文件，把compileSdkVersion 、targetSdkVersion 都改成sdk Manager里installed的API版本

apply plugin: 'android'

android {
    compileSdkVersion 14
    buildToolsVersion "20.0.0"

    defaultConfig {
        minSdkVersion 8
        targetSdkVersion 14
    }

    buildTypes {
        release {
            runProguard false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt'
        }
    }
}

dependencies {
    compile project(':library')
    compile 'com.android.support:support-v4:20.0.0+'
}

http://www.th7.cn/Program/Android/201408/261686.shtml

（2）

Tools > Android > SDK Manager 把android 2.1(API7)勾选，installed