Unable to resolve target 'android-7'

Unable to resolve target 'android-7'

解决方案：

修改工程目录下的default.properties文件里的内容target=android-7改成target=android-12(或者其他版本)就可以了，最好用txt打开，然后修改之后保存，运行就可以了。

原代码如下：

# 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 use,

# "build.properties", and override values to adapt the script to your

# project structure.

# Project target.

target=android-12

转自：http://hi.baidu.com/xiaojiang/item/e554073750f2e1fa2784f4f8