1.

[2011-04-13 10:59:41 - ApiDemosApplication] Installation error: INSTALL_FAILED_MISSING_FEATURE
[2011-04-13 10:59:41 - ApiDemosApplication] Please check logcat output for more details.
[2011-04-13 10:59:41 - ApiDemosApplication] Launch canceled!

解决如下：
注释掉camera功能，相机功能，因为（android.hardware.camera）ApiDemos似乎无法要求安装：
< - ！<uses-feature Android:name="android.hardware.camera" /> - >“

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