<activity android:name=".MainActivity"
                  android:label="@string/app_name"
                  android:screenOrientation="landscape">

위에 부분 추가했는데 실행이 안되네요 ㅠㅠ

22:18:26,270 INFO  [main] Main  - javax.xml.transform.TransformerFactory=null
22:18:26,273 INFO  [main] Main  - java.endorsed.dirs=C:\Program Files\Java\jre6\lib\endorsed
22:18:26,281 INFO  [main] Main  - launchFile: C:\AndroidProject\.metadata\.plugins\org.eclipse.wst.xsl.jaxp.launching\launch\launch.xml
22:18:26,375 FATAL [main] Main  - No embedded stylesheet instruction for file: file:/C:/AndroidProject/Project_3/AndroidManifest.xml
org.eclipse.wst.xsl.jaxp.debug.invoker.TransformationException: No embedded stylesheet instruction for file: file:/C:/AndroidProject/Project_3/AndroidManifest.xml
 at org.eclipse.wst.xsl.jaxp.debug.invoker.internal.JAXPSAXProcessorInvoker.transform(JAXPSAXProcessorInvoker.java:225)
 at org.eclipse.wst.xsl.jaxp.debug.invoker.internal.JAXPSAXProcessorInvoker.transform(JAXPSAXProcessorInvoker.java:186)
 at org.eclipse.wst.xsl.jaxp.debug.invoker.internal.Main.main(Main.java:73)
Caused by: org.eclipse.wst.xsl.jaxp.debug.invoker.TransformationException: No embedded stylesheet instruction for file: file:/C:/AndroidProject/Project_3/AndroidManifest.xml
 at org.eclipse.wst.xsl.jaxp.debug.invoker.internal.JAXPSAXProcessorInvoker.transform(JAXPSAXProcessorInvoker.java:214)
 ... 2 more

안드로이드 이제 시작해서 오류 해석 조차 못하겠네요 ;; 문제좀 봐주세요 ㅠ