每次我编译我的android代码时，我都会收到这个错误。
[2012-09-30 14:46:48 - My First App] activity_main.out.xml is out of sync. Please refresh.
[2012-09-30 14:47:08 - My First App] activity_main.out.xml is out of sync. Please refresh.
[2012-09-30 14:51:04 - My First App] Error in an XML file: aborting build.
[2012-09-30 14:51:18 - My First App] Error in an XML file: aborting build.
[2012-09-30 15:39:17 - My First App] Error in an XML file: aborting build.
[2012-09-30 21:21:33 - sup_cheesepuff] ------------------------------
[2012-09-30 21:21:33 - sup_cheesepuff] Android Launch!
[2012-09-30 21:21:33 - sup_cheesepuff] adb is running normally.
[2012-09-30 21:21:33 - sup_cheesepuff] Performing com.example.sup_cheesepuff.MainActivity activity launch
[2012-09-30 21:21:34 - sup_cheesepuff] Automatic Target Mode: launching new emulator with compatible AVD 'Froyo.'
[2012-09-30 21:21:34 - sup_cheesepuff] Launching a new emulator with Virtual Device 'Froyo.'
[2012-09-30 21:21:56 - Emulator] 2012-09-30 21:21:56.633 emulator-arm[7523:1107] Warning once: This application, or a library it uses, is using NSQuickDrawView, which has been deprecated. Apps should cease use of QuickDraw and move to Quartz.
[2012-09-30 21:21:56 - sup_cheesepuff] New emulator found: emulator-5554
[2012-09-30 21:21:56 - sup_cheesepuff] Waiting for HOME ('android.process.acore') to be launched...
[2012-09-30 21:23:20 - sup_cheesepuff] HOME is up on device 'emulator-5554'
[2012-09-30 21:23:20 - sup_cheesepuff] Uploading sup_cheesepuff.apk onto device 'emulator-5554'
[2012-09-30 21:23:20 - sup_cheesepuff] Installing sup_cheesepuff.apk...
[2012-09-30 21:23:36 - sup_cheesepuff] Success!
[2012-09-30 21:23:36 - sup_cheesepuff] Starting activity com.example.sup_cheesepuff.MainActivity on device emulator-5554
[2012-09-30 21:23:41 - sup_cheesepuff] ActivityManager: Starting: Intent { act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] cmp=com.example.sup_cheesepuff/.MainActivity }
[2012-09-30 21:32:10 - sup_cheesepuff] Error in an XML file: aborting build.
我已经查看了具有类似主题的其他主题，但没有任何帮助。这是我的 XML 源代码。
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="fill_parent"
android:layout_height="fill_parent" >
<TextView
android:id="@+id/textView2"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_centerHorizontal="true"
android:layout_centerVertical="true"
android:text="@string/hello_world"
tools:context=".MainActivity" />
<TextView
android:id="@+id/textView1"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentTop="true"
android:layout_centerHorizontal="true"
android:layout_marginTop="100dp"
android:text="Hey boi!"
android:textAppearance="?android:attr/textAppearanceLarge" />
</RelativeLayout>
顺便说一句，我对 Android 和 XML 都是新手。