Android project gets java.lang.NoClassDefFoundError

Question

I add project B to A's java build path:

and imported packageB in my A.java:

import com.example.mysensorlistener.MySensorListener;

but still get runtime error:

01-04 18:31:38.533: E/dalvikvm(9746): Could not find class 'com.example.mysensorlistener.MySensorListener', referenced from method com.example.huaweiproj.HuaweiProj.<init>

how can i fix that? dont tell me to copy&paste the java file directly....

Answer 1

在项目属性中添加到项目库，然后尝试导入它。