Android：我的服务不想启动

Question

日志：

08-22 11:16:17.214: INFO/SystemServer(61): Backup Service
08-22 11:16:17.274: INFO/BackupManagerService(61): Backup enabled => false
08-22 11:16:44.173: WARN/ActivityManager(61): Scheduling restart of crashed service       cal.com/.app.service.BackProcess in 5000ms
08-22 11:16:44.183: INFO/ActivityManager(61):   Force stopping service ServiceRecord{406689c8    cal.com/.app.service.BackProcess}
08-22 11:16:44.814: DEBUG/PackageManager(61):   Services: cal.com.app.service.BackProcess

我无法在My Manifest中启动我的服务：

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
  package="cal.com"
  android:versionCode="1"
  android:versionName="1.0">
<uses-sdk android:minSdkVersion="8" />
<uses-permission android:name="android.permission.INTERNET" />
<uses-permission android:name="android.permission.RECEIVE_BOOT_COMPLETED"></uses-permission>
<application 
    android:icon="@drawable/icon" android:label="@string/app_name" 
    >
    <activity android:name=".app.activity.AgoroidActivity"
              android:label="@string/app_name"
              android:theme="@android:style/Theme.NoTitleBar">
        <intent-filter>
            <action android:name="android.intent.action.MAIN" />
            <category android:name="android.intent.category.LAUNCHER" />
        </intent-filter>
    </activity>
    <activity android:name=".app.activity.calendar.CalendarListActivity"></activity>
    <activity android:name=".app.activity.calendar.CalendarViewActivity"></activity>
    <service 
        android:name=".app.service.BackProcess"
        android:enabled="true"
        android:permission="android.permission.ACCESS_CHECKIN_PROPERTIES">
        <intent-filter>
            <action android:name="cal.com.app.service.BackProcess" />
        </intent-filter>
    </service>
    <receiver 
        android:name="cal.com.app.service.receiver.BootReceiver"
        android:enabled="true"
        android:permission="android.permission.ACCESS_CHECKIN_PROPERTIES">
        <intent-filter>
            <action android:name="android.intent.action.BOOT_COMPLETED" />
            <category android:name="android.intent.category.HOME" />
        </intent-filter>
    </receiver>
</application>
</manifest>