on device '????????????': adb rejected install command with: device not found

但在eclipse中run会提示一下错误：
Failed to install helloworld.apk on device '????????????': adb rejected install command with: device not found
com.android.ddmlib.AdbCommandRejectedException: device not found
Launch canceled!

解决方法如下：

以C8812为例

拨号：*#*#2846579#*#*
ProjectMenu->后台设置->USB端口配置->Google 模式