1、检查该文件夹是否已经被配置到了工程的build path里source folders
===》右键工程 选Build Path->Configure Build Path就可以看到
2、将folder 转成 package 显示
===》选中folder, build path-> Include
1、检查该文件夹是否已经被配置到了工程的build path里source folders
===》右键工程 选Build Path->Configure Build Path就可以看到
2、将folder 转成 package 显示
===》选中folder, build path-> Include