今天导入一个项目时出现conversion to dalvik format failed with error 这样的错误！网上找了好一阵子终于解决了！
详细如下：
[Android] conversion to dalvik format failed with error 1
if you came across the following error message:
"conversion to dalvik format failed with error 1"
please check your project property:
Java Build Path->Libraries->JARs and class folders on the build path
make sure you didn't manually include the android.jar
就是说你大概不知怎么添加了一个 android.jar ，把它移除就OK了！