Question

eclipse打开几个安卓工程时提示的错误（如图），怎么解决，万分感谢。

Answer 1

差属性文件，看是不是AndroidManifest.xml那个配置文件。
你还是先学习下安卓环境配置、安卓开发再说啊，不要动不动就网上下个工程来，有意思么？

Answer 2

android project缺少properity文件，以下是该文件说明，可以clean后build project自动生成，
# This file is automatically generated by Android Tools.
# Do not modify this file -- YOUR CHANGES WILL BE ERASED!
#
# This file must be checked in Version Control Systems.
#
# To customize properties used by the Ant build system edit
# "ant.properties", and override values to adapt the script to your
# project structure.
#
# To enable ProGuard to shrink and obfuscate your code, uncomment this (available properties: sdk.dir, user.home):
#proguard.config=${sdk.dir}\tools\proguard\proguard-android.txt:proguard-project.txt
# Project target.
target=android-15

Answer 3

adb update server