Android Studio无法在设备上运行应用程序：卡在“等待进程：”

WaiTing for device.
Target device: samsung-samsung_sgh_i337-8c8aa2c7
Uploading file
    local path: C:\Users\awebberley\AndroidstudioProjects\Contacts\app\build\apk\app-debug-unaligned.apk
    remote path: /data/local/tmp/org.intracode.contacts
Installing org.intracode.contacts
DEVICE SHelL COMMAND: pm install -r "/data/local/tmp/org.intracode.contacts"
pkg:/data/local/tmp/org.intracode.contacts
success


WaiTing for process: org.intracode.contacts

它只停留在“等待进程”消息而不运行应用程序.我是Android开发的新手,有没有我失踪的东西？

在我之前,我能够在一个模拟器中启动应用程序,但是在我尝试这个并返回到仿真器之后,出现了同样的“等待进程”消息.

这是我的manifest.xml文件：

<?xml version="1.0" encoding="utf-8"?>

<application
    android:debuggable="true"
    android:allowBACkup="true"
    android:icon="@drawable/ic_launcher"
    android:label="@String/app_name"
    android:theme="@style/AppTheme" >
    <activity
        android:name="org.intracode.contacts.MainActivity"
        android:launchMode="standard"
        android:label="@String/app_name" >
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />

            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
</application>

这是我唯一的java文件：

package org.intracode.contacts;

import android.support.v7.app.ActionBarActivity;
import android.os.bundle;
import android.text.Editable;
import android.text.TextWatcher;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.widget.button;
import android.widget.EditText;
import android.widget.TabHost;
import android.widget.Toast;


public class MainActivity extends ActionBarActivity {

    EditText nameTxt,phoneTxt,emailTxt,addressTxt;

    @Override
    protected void onCreate(Bundle savedInstanceStatE) {
        super.onCreate(savedInstanceStatE);
        setContentView(R.layout.activity_main);

        nameTxt = (EditText) findViewById(R.id.txtName);
        phoneTxt = (EditText) findViewById(R.id.txtPhonE);
        emailTxt = (EditText) findViewById(R.id.txtEmail);
        addressTxt = (EditText) findViewById(R.id.txtAddress);
        TabHost tabHost = (TabHost) findViewById(R.id.tabHost);

        tabHost.setup();

        TabHost.TabSpec tabSpec = tabHost.newTabSpec("Creator");
        tabSpec.setContent(R.id.creator);
        tabSpec.seTinDicator("Creator");
        tabHost.addTab(tabSpec);

        tabSpec = tabHost.newTabSpec("List");
        tabSpec.setContent(R.id.tabContactList);
        tabSpec.seTinDicator("List");
        tabHost.addTab(tabSpec);

        final Button addBtn = (Button) findViewById(R.id.btncreate);
        addBtn.setOnClickListener(new View.onClickListener() {
            @Override
            public void onClick(View view) {
                Toast.makeText(getApplicationContext(),"Your Contact has been created!",Toast.LENGTH_SHORT).show();
            }
        });

        nameTxt.addTextChangedListener(new TextWatcher() {
            @Override
            public void beforeTextChanged(CharSequence charSequence,int i,int i2,int i3) {

            }

            @Override
            public void ontextChanged(CharSequence charSequence,int i3) {
                addBtn.setEnabled(!nameTxt.getText().toString().trim().isEmpty());

            }

                @Override
                public void afterTextChanged(Editable editablE) {

            }
        });
    }


    @Override
    public Boolean onCreateOptionsMenu(Menu menu) {

        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main,menu);
        return true;
    }

    @Override
    public Boolean onOptionsItemSELEcted(MenuItem item) {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button,so long
        // as you specify a parent activity in AndroidManifest.xml.
        int id = item.getItemId();
        if (id == R.id.action_setTings) {
            return true;
        }
        return super.onOptionsItemSELEcted(item);
    }

}

谢谢