常见的android错误 【错误信息】 [2011-03-09 15:21:34 - Info] Failed to install Info.apk on device '?': Unable to open sync connection! [2011-03-09 15:21:34 - Info] java.io.IOException: Unable to open sync connection! [2011-03-09 15:21:34 - Info] Launch canceled! 原因: 关闭模拟器和eclipse,执行adb kill-server命令,然后重试一下