这是什么错啊，该怎么解决啊，求大神...坐等解答啊。
我先drawable-hdpi添加了一张图片而且在main,xml里也引用为背景图片啦android:background="@drawable/qq123"，
编译可以通过，为什么运行不了啊。
[最优解释]
诡异的错，放在别的drawable下试试，要不删工程 从新import
我一般都用这些方法，有时候就好了- -
[其他解释]
重新导入还几次了，都没用，导入后还会报
[2012-12-10 17:06:44 - Music] Error in an XML file: aborting build.
[2012-12-10 17:09:02 - Music] R.java was modified manually! Reverting to generated version!
[2012-12-10 17:10:30 - Music] R.java was modified manually! Reverting to generated version!
[2012-12-10 17:14:15 - Music] libpng error: Not a PNG file
[2012-12-10 17:14:15 - Music] ERROR: Failure processing PNG image C:\Documents and Settings\Administrator\workspace\Music\res\drawable-hdpi\qq123.png
[2012-12-10 17:14:15 - Music] C:\Documents and Settings\Administrator\workspace\Music\res\layout\main.xml:2: error: Error: No resource found that matches the given name (at 'background' with value '@drawable/qq123').
[2012-12-10 18:01:54 - Music] libpng error: Not a PNG file
[2012-12-10 18:01:54 - Music] ERROR: Failure processing PNG image C:\Documents and Settings\Administrator\workspace\Music\res\drawable-ldpi\qq123.png
[2012-12-10 18:01:54 - Music] C:\Documents and Settings\Administrator\workspace\Music\res\layout\main.xml:2: error: Error: No resource found that matches the given name (at 'background' with value '@drawable/qq123').
[其他解释]
[2012-12-10 17:14:15 - Music] libpng error: Not a PNG file
不是一个PNG格式的图？
换一张试试呢。
[其他解释]
好吧，那是张假PNG格式的，是被谁直接改后缀名的，现在好啦...
[其他解释]
wo ........................... yun ................................