错误：在 ABI 的 NDK 工具链文件夹中找不到工具链，前缀为：arm-linux-androideabi

我对Android Studio非常陌生，我正在快速移动并从我的代码中删除一些东西......现在我不断收到错误消息，我的gradle同步失败。

我在日志中看到以下内容：

2016-06-01 05:39:55,358 [32778590]   WARN - radle.project.ProjectSetUpTask -  
2016-06-01 05:39:55,358 [32778590]   INFO - radle.project.ProjectSetUpTask - No toolchains found in the NDK toolchains folder for ABI with prefix: arm-linux-androideabi

Consult IDE log for more details (Help | Show Log) 
2016-06-01 05:39:55,360 [32778592]   INFO - ls.idea.gradle.GradleSyncState - Sync with Gradle for project 'Jumping-Jinn' failed: No toolchains found in the NDK toolchains folder for ABI with prefix: arm-linux-androideabi

Consult IDE log for more details (Help | Show Log) 
2016-06-01 05:39:56,676 [32779908]   INFO -       #com.jetbrains.cidr.lang - Clearing symbols finished in 0 s. 
2016-06-01 05:39:56,677 [32779909]   INFO -       #com.jetbrains.cidr.lang - Loading symbols finished in 0 s. 
2016-06-01 05:39:56,678 [32779910]   INFO -       #com.jetbrains.cidr.lang - Building symbols finished in 0 s. 
2016-06-01 05:39:56,678 [32779910]   INFO -       #com.jetbrains.cidr.lang - Saving symbols finished in 0 s. 

我的代码基本上什么也没说：注意：AppCompatActivity目前是红色的

import android.media.Image;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.ImageButton;
import android.widget.Toast;

public class HomeScreen extends AppCompatActivity {

    ImageButton musicEnable_ImageButton;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_home_screen);

        musicEnable_ImageButton = (ImageButton) findViewById(R.id.soundEnable_button);
        musicEnable_ImageButton.setOnClickListener(new View.OnClickListener(){
            @Override
            public void onClick(View v){
                musicEnable_ImageButton.setBackgroundResource(R.drawable.musicon1);
            }
        });
    }